You know who put up a pretty damn good fight, even though he's not a final boss... That would be Luca Blight from Suikoden 2. I mean... You have to first wound him in the map battles (which is sorta like FFT style battles for those of you who haven't played this game yet), then you have to have your first party wound him some more, then your second one, and finally your main party. Even after you beat him 3 times, he gets shot by thousands of arrows... Still, the bugger is alive!! Finally, after a one on one with the hero and he's dead! Man, I had more trouble with this guy than any boss from the FF games.
HAHAHAHAHA!!! Don't make me laugh... I could crush you like an insect. Heh heh, but first, I will tell you a breathtaking secret about the Angel's power... And the legendary force that was forged with it...

Rufus Shinra