Best finishing move? (Brawl)

[Mikaya]

for me it would be Link/Toon link's. He just runs up to the enemy and slices them so much with the power of the triforce and the final blow just knocks them right off the screen. I love it. <3

it can fail if you're not in the same level (platform-wise, balanced, neither too high or too low) as your enemies.

 

[Lovebeat]

My personal favorite is Luigi for how you can trap people and almost always get at least one kill from it.

 

[Yeshua]

I always loved Snake's based on the style factor alone. Marth's is pretty beastly too.

And for sheer comedy's sake, Donkey Kong's, because nothing says "time to kick some <censored>" like whipping out a set of bongos.