Pokémon Y- Beat the champion.
Best Pokémon game? Unlike Gen 5, this really does feel like a big leap in user friendliness and overall design. You're given LOADS of good solid pokémon options every time you advance, wild pokes are rarely significantly below expected levels, TMs are readily available, and there's a great number of event pokémon to use if catching isn't really your bag. The biggest knock I can really give it is that it's ridonkulously easy at points, but that's because the new EXP Share is, as snow would put it, degenerate. Oh wait if you want something a little more respectable you can turn the thing off. Done and done.
E4 Team
Greninja (71 Water/Dark, Torrent, Jolly, Extrasensory/Waterfall/Surf/Night Slash)- Aside from Night slash being ridiculously late, and thus making the Dark typing an added liability (albeit a minor one) 99% of the time, real good at what he does. Water Shiruken is pretty lame honestly, but waterfall exists so what the hell ever. Glad the Gen 6 starters don't suffer from what made all the gen 5 ones kinda suck: out of type movepool is quite reasonable here.
Yveltal (64 Dark/Flying, Dark Aura, Hardy, Foul Play/Oblivion Wing/Dragon Rush/Psychic)- So, HP and offense uber? Pretty cool. I am a sucker for great draining moves, spam Oblivion Wing all day every day. Is an uber, does uber things.
Gourgeist (65 Grass/Ghost, Pickup, Mild, Seed Bomb/Leech Seed/Shadow Ball/Phantom Force)- Not really that great. It's really the mid-game when you want that grass typing I found, and by the time he got into the party there just wasn't a lot left. Ghost didn't fill any real niches for me admittedly, and I felt like EVERYTHING was packing Crunch for some damn reason so.
Blaziken (62 Kickchicken, Speed Boost, Brave, Sky Uppercut/Bulk Up/Brick Break/Blaze Kick)- Sweet jesus. Not balanced. I didn't get Victini in Gen 5, so I dunno how that performed, but good lord if I'd used this guy as anything but a trump card in the before the endgame I dunno what the game would have done. Came damn close to soloing two different E4 members. Kicker is that it counts as a trade, so 50% bonus experience on top of the already experience heavy new systems. If you're looking for the game to fight back, bench.
Sylveon (71 Fairy, Cute Charm, Lax, Dazzling Gem/Moonblast/Calm Mind/Misty Terrain)- Really limited movepool. I used Calm Mind all of once, Misty Terrain (a team variant on Safeguard) never, and Dazzling Charm is just Moonblast with less power but MT and more importantly a PP stash for longer dungeons. Basically tanks, smites foes with the POWER OF THE MOON, goes from there. Fairy tends to be reasonably neutral except when it's effective, since the types that resist it are ALSO its weaknesses anyway. I had to backtrack severely to get the eevee for this, so it was underlevelled... and still ended up with my highest levels because, well, it's a special tank with a reasonably neutral typing, good leadoff that likes to OHKO things. Well and because, due to the nature of its evo, it gets a 25% exp boost.
Aurorus (65 Rock/Ice, Refridgerate, Modest, Ice Beam/Light Screen/Hyper Beam/Thunderbolt)- Look at that typing. It's trying to be an HP tank. AND YET. It's just a neat poke. As many things as it has to run screaming from, you can depend on it to go out and win slugging matches a weird amount, although in fairness it was helped a bit because I wasn't using anything else that could learn Tbolt.
Others (in order dropped)
Charizard (65 OG, Blaze, Mild, Cut/Fly/Strength/Flamethrower)- HM whore! Except. I'm playing Pokémon Y, so it gets its Y Mega Evo. Mega Charizard Y jacks its SAtk and replaces Blaze with Drought. So basically if I ran across something my bad overall type coverage couldn't handle (I swapped 'zard for kickchicken in the E4 basically), a mega-form flamethrower basically OHKOed anything and everything with neutral resist to fire.
Vivillon (58 Bug/Flying, Compound Eyes, Lax, Bug Buzz/Quiver Dance/Stun Spore/Hurricane)- The bug has a pretty useful moveset at basically every stage of the game; I even found myself missing bug buzz at points after dropping him. ultimately the stats just aren't going to keep up, the usual "why do they keep making Bug/Flying" question comes up, but... yeah. For in-game usefulness really really high, clear MVP until the point I dropped him for my cover legend.
Lucario (48 badass, Steadfast, Hasty, Calm Mind/Swords dance/Aura Sphere/Strength)- Not really great in gen 6? I didn't use him too long though. I considered it for a while (hence Strength) but really didn't want to mess around after a point. Admittedly I used Lucario heavily in BW2 and plat in recent memory so other, more unique options were more appealing.
Snorlax (28 lazybum, THick Fat, Naive, Strength/Body Slam/Rest/Yawn)- Basically a good placeholder while I found cooler pokémon. He's really very early, something like L15 and I believe before gym 2, maaaaybe 3. Nothing exciting but at the time I was holding out for later options so hey why not.
I also considred trying out the slug dragon, but forgot it needed to be raining to hit final evo (I caught one like three short of evo or something, but I dno't know rain dance on anything and the areas with auto-rain are really low level). Since it stops learning moves at its final evo level until evolution, stuffed it back in the box (because I mean I already blew the one Heart Scale I found on Sylveon, nuts to hunting more). if I run across rain dance I might pull it back out to play around, assuming I stick with the aftergame.
so uh yeah. Pokeymanz. I'm honestly feeling 8/10, wasn't expecting this to pull so far ahead of the pack but here we are.