Fuse (Saga) vs Doel (LoD): Mind Magic's style of fight.
Fuse vs Nicholai Conrad (SH2): Stalls out the SP at worst. Boss version is lulz.
Fuse vs Scias (BoF4): Halves status, thus is a better version of the same thing.
Fuse vs Zero (MMXCM): Status immune once he gets a turn. Could argue palsy = bind too, but yeah, I don't see Fuse spamming a reasonably durable PC to death without him getting a single turn.
Fuse vs Kevin (SD3): Kevin may have some argument but eh, gutting Fuse is better overall.
Fuse vs Saki Inugami (SH2): Awakening doesn't buff defence, and Saga doesn't block silence. Bad combo against Saki.
Fuse vs Popoi (SoM): Some horrible status or other. See comments about Zero.
Fujin (FF8) vs Doel (LoD): Boss.
Fujin vs Nicholai Conrad (SH2): Not a boss. Okay he has a boss form but DON'T ASK ME HOW THAT FIGHT GOES OH GOD.
Fujin vs Scias (BoF4): Think Scias has the oomph needed here? Halving status should give him the insurance he needs, too.
Fujin vs Zero (MMXCM): Wins if he goes first. Maay win otherwise. Not sure exactly where Fujin is for speed, but this works.
Fujin vs Kevin (SD3): Open for arguments.
Fujin vs Saki Inugami (SH2): Boss.
Fujin vs Popoi (SoM): Better at the status fight?
Elinica (FE10) vs Doel (LoD): Should outslug, even though the invincibility is useless (Physic!). Doel is pretty good when thunder isn't blocked, 2HKO damage off of ~2PC physical durability in that second form.
Elincia vs Nicholai Conrad (SH2): Could be argued. But at worst, stall out the SP probably works.
Elincia vs Scias (BoF4): OHKO.
Elincia vs Zero (MMXCM): Survives the second turn with 150% HP and status immunity I -think-. This is admittedly close.
Elincia vs Kevin (SD3): Counters tilt this nicely, I think.
Elincia vs Saki Inugami (SH2): EC physical OHKO.
Elincia vs Popoi (SoM): Status.
Fuse 3-4
Elincia 2-5
Fujin 2-5
None of them amazing Heavies, though none terrible.