sora from kingdom hearts. Because fighting with a keyblade is win. Fighting with two keyblades is pure awesomeness.
sakuraba neku from the world ends with you/it's a wonderful world (whichever name you prefer)
best. Character progression. Ever.
suzumiya haruhi from suzumiya haruhi no yuutsu.
I won't even explain this one, one
should know she is awesomeness in a human shell.
rikku from final fantasy x
not too shabby in x-2, but she lost much of her cool design there.
kira(yagami raito) from death note
all l-lovers, begone! You fail!
tali from mass effect.
She is wearing a suit and is the best hacker evar!
that's my absolute favourites. I have loads of more.