They're both good characters, but, can Diddy teleport? No. Can Meta Knight? Yes. (Down & B) Plus, Diddy's gun takes awhile for it to charge & u have to take a wild guess for when it's going to do the most damage or else u blow urself up if u wait to long. Also, Diddy's FS is sorta like, Sonic's & Pikachu's. u just fly around. Yeah it can do some massive damage but Meta Knight's can hit multiple people at once and, if u do it just right, freeze the people right in their spots so it's easier to hit them & do more damage. I think u should go with Meta Knight. But that's my opinion.

__________________

I have GIMP! =D