I think Lisa. She's more courageous than Double D
Double D is smarter and funnier so he'd win.(Lisa is great too)
Lisa, she can use the hand of buudha to destroy Double D
is this real?
Double-D, by accident
Double D because he slammed someone against a wall once
I don't know. But I think Double D and Lisa would be best friends.
I'll say Double D.
I don't know. maybe Double D since he a little taller but I can't say for sure.
Lisa and Edd, the only sane people you should always trust!
I like both characters, but I like Double D more than Lisa, so I think Double D wins.
i don't think lisa and double d would fight because they're geniuses and they'd probably just be friends instead of rivals. lolz
Both Lisa and Double D are my favorite cartoon geniuses, so I can't decide between them.
I have to say Lisa Simpson.
Double D totally.