I'll assume this is for "Zomg" factor, not actual look of effectiveness. I'll share with you my 5 most nostalgic Finales then:
No specific order...
- Warioman: I seriously didn't expect him to be in it, and I love the fact that he is. Some of his minigames in Twisted were just too good to ever forget :D.
- Mario Finale: I'm not sure if any of you have noticed, but just seeing Mario's face gives off more nostalgia of my childhood than any other form of media. When I first observed his giant fireball of a move, it basically just summed up all that is awesome about Mario.
- Super Sonic: Blech, I know, a cliche. Unlike some others who just like Sonic due to "OMG SUPER SAJIN!", I played through SA2B 'till the very end where you face off with Biolizard. His FS emphasised the emotions that I went through at the last moments of the game (seeing Shadow die [like he should have stayed to the franchise, dead] right in front of your eyes). There's something in his move that really brings out those moments. Live And Learn didn't hurt either.
- Samus: KAMEHAMEHA! "nuff said.
- Peanut Popgun/ Barrel Jets: Some of the worst controls in DK64 were flight oriented. I'm sure that whenever I use Diddy's FS, those frusterating memorites of trying to hover through hoops will swim back to me...