Okay, so, Lezard forms:
VP1 PC: Is a mage. A lot like Gandar, has Poison Blow as his best. Kills the frail turn 4 and everyone else turn 7, has uh SILENCE (50%, every 6 turns. VP mages are so amazing).
VP1 boss: 0.4 PCHP or so. These days I allow great magic first turn, so he's actually kinda okay past that durability.
VP1 SG boss: Probably about 0.6-0.7 PCHP, overkill damage.
VP2 PC: Spiritual Thorn is gained after he leaves, but he does come back (although only fights Odin, who can't be IDed), and is available in the SG, so... whatever, I'll consider it.
VP2 boss: I don't consider damage reduction, no different than Ashnard to me. VP2 PCHP is something I have a hard time pegging down, he's definitely kinda fragile as far as I'm concerned. Just over a quarter Loki's HP in a game with higher damage... uh... half PC sounds right.
VP2 SG boss: Obsessed Ex is pretty much Anarchic Entity with 4.5x the HP... but faces higher damage too certainly. Probably a bit under 2x? So call him a bit over PCHP, 1.25ish. He also has more magic damage by quite a ways, though the mixed moves aren't too different.
Doglike Lezard: Because my votes wouldn't be Fenrir-approved otherwise. Anyway, while Doglike Lezard is a terrible boss, it is only fair to scale him against other dogs. So... 1.6x HP, 2x overkill damage.
In general, Dog >>> Obsessed Ex >= VP1 SG >> VP2 PC ~= VP2 boss > VP1 boss >> VP1 PC
Anyway, I'll note the number of Lezards that win each fight.
Lezard Valeth vs. Loki (Valkyrie Profile):
0.5/7 Lezard wins. Dog gets one-shotted by Indiscriminate (and I have more respect for Loki's speed). Obsessed Ex can probably tank one due to elemental resistances, but certainly isn't OHKOing either. VP1 SG is a tie, though, they're the same speed and both KO each other.
Lezard Valeth vs. Necrophobia (Final Fantasy 5): Abstain. No stat topic + endgame FF5 headaches. These two deserve each other, I can see ways to make Necrophbia awesome and to make him utter suck.
Lezard Valeth vs. Hrist (Valkyrie Profile 2): Dog wins easily, Obsessed Ex... mm. Hrist needs to block ID, does one shot of Rebellious Repentence or whatever it's called kill? Nah, probably not.
1/7 Lezard wins.
Lezard Valeth vs. Odin (Valkyrie Profile 2): Dog should pretty much sweep from here I think, even halving fire doesn't slow him down enough. The SG bosses both win as well, just better/not OHKOed.
3/7 Lezard wins.
Lezard Valeth vs. Kevin (Xenosaga 3): Oh god. Resists fire but Dog still wins, SG bosses too good. VP2 boss I think is a better slugger, but not VP2 PC who relies on ID. VP1 boss... surely Kevin can handle him. Surely.
4/7 Lezard wins.
Lezard Valeth vs. Pamela Ibis (Mana Khemia): And suddenly back to people who don't totally suck. Still can't handle the main three, should handle VP2 boss with a limit KO though, gets IDed by VP2 PC... and OHKOed by VP1 boss. Wow.
5/7 Lezard wins.
Lezard Valeth vs. Freya (Final Fantasy 9): Faster so beats VP1 boss, berserk forces VP2 PC into shitty damage which she can outslug, but gets IDed by VP2 boss.
4/7 Lezard wins.
Lezard Valeth vs. Dragoon (Final Fantasy 3): Voting on DS here. Anyway, Dragoon does OHKO damage with Jump, which takes out... an awful lot of the field, since he's above average speed. Dog obviously slaughters, Obsessed Ex... will get off ID unless Dragoon can chip, which he can with the holy itemcast.
1/7 Lezard wins.Lezard Valeth vs. Neclord (Suikoden series): Uh. Think he can outtank VP1 boss despite being weak to holy, obviously badly outslugs all the other non-good forms. SG bosses are too much for him, though, as is the dog, who at least takes 3 hits to win!
3/7 Lezard wins.
Lezard Valeth vs. Alicia (Valkyrie Profile 2): Death immunity, some element resistance, and infinite healing crush most of the Lezards. She lacks the offence to one-round Obsessed Ex though, and can't get enough fire resist to deal with the dog.
2/7 Lezard wins.
Lezard Valeth vs. Selan (w/ Ice Valk spell legal) (Lufia 2): She should just survive a hit from VP1 boss, can turtle for IP against both VP2 bosses, can't deal with VP2 PC though.
3/7 Lezard wins.
Lezard Valeth vs. L'Arachel (Fire Emblem 8): All the res is a problem for a bunch of the Lezards. Some do have some light holy resist which helps. She loses to dog, the two with 100% ID, and VP1 SG though. Oh and Reflect is awful. Never mind.
6/7 Lezard wins.
Lezard Valeth vs. Clarine (Fire Emblem 6): Largely as above, though Clarine has different elements and more evade. Still don't think it's enough to outslug dog, still can't dodge limits ever, still loses to VP1 SG, still loses to reflect.
6/7 Lezard wins.
Lezard Valeth vs. Marle (w/ Valkyrie crossbow) (Chrono Trigger): MDef and haste/heals gets her past some, but she can't dodge limits, beat the dog, or the SG. Haste/Provoke owns VP2 PC.
4/7 Lezard wins.
Lezard Valeth vs. Lise (Seiken Densetsu 3): Can dodge VP2's limit... certainly can't handle the big three though, and gets IDed by VP2 PC.
4/7 Lezard wins.
Lezard Valeth vs. Cistina (Tactics Ogre PSP): Outspeeds so beats VP1, but gets IDed... and don't quite think her healing game can handle VP2 boss at full HP (and trying to slug gets her IDed there too).
5/7 Lezard wins.
Lezard Valeth vs. Selene (Grandia 2): Handles VP1 scrubs, VP2 PC, and... probably outslugs VP2 boss as well. Hell, has a shot at OHKOing the VP1 SG (her best move and the HP average aren't listed, grr) but I'll kneejerk not.
3/7 Lezard wins.
Lezard Valeth vs. Mist (Fire Emblem series): Her res isn't as good, but it's still enough to handle VP2 PC and VP1 reasonable forms. Can't dodge limits.
4/7 Lezard wins.
Lezard Valeth vs. Dupa (Suikoden 3): Dupa is slow and below average damage, so he's all kinds of bait to almost everything Lezard does. Should outslug VP1 PC at least.
6/7 Lezard wins.
Lezard Valeth vs. Leone (Valkyrie Profile 2): Beats both VP1... don't think she can limit dodge well though, and leaves before ID blockers are available so too bad there.
5/7 Lezard wins.
Lezard Valeth vs. Quistis (Final Fantasy 8): Against the VP2 bosses I'd probably let her get off a limit? Nah, SG's magic is too good. Also beats VP1 PC. Loses to VP1 boss though.
5/7 Lezard wins.
Lezard Valeth vs. Valkyrie Maribelle (Fire Emblem Awakening): Usual valkyrie nonsense, only worse. Still good enough to handle VP1 PC? Yeah probably, that form is so bad.
6/7 Lezard wins.
Lezard Valeth vs. Mystina (Valkyrie Profile): Okay, let's do this, VP1 PC MAGE-OFF. Uh there's Dampen Magic!... but it's 6 CT and arguably could even hit a blocker. So screw that. Mystina kills on turn 6, Lezard on turn 7. OUT-VP1-PC-MAGE'd.
6/7 Lezard wins.
Lezard Valeth vs.
? (Final Fantasy 6): what is this I don't even. Assuming you don't let ghost win by the suicide move it is so bad that I think VP1 wins.
7/7 Lezard wins.
Lezard Valeth vs. Hrist (Valkyrie Profile 1): Okay someone worse than ghost.
7/7 Lezard wins.