I justed watched the Final Smash video so i judged it on that..but anyway here are my top 4(not from what i like the most to what i like the least)
1. Pit-He just lookes very cool..lol
2. Snake- His final smash is awsome..you get to use your aiming skills to get headshots on an unlucky opponent. Though i may not use him because he is prolly going to be the overplayed character online
3. Sonic- Final Smash looks cool..lol
4.Fox(the metal armor one)-looks cool and cool final smash..
Wolf- Hes fast and looks cool..only thing is is FS...its the same as foxs and falcos..