Why did Sony go with Super Smash Bros. too instead of Super Mario Bros. too?

[fighter]

bananaking21 said:

fighter said:
Back on topic - the answer is obvious

if they create another SMB clone they compete against the already struggling LBP

how is LBP a clone? im just asking honestly, no intention to start anything, just a logical and mature conversation. please explain your points on how LBP is a SMB clone

shouldn't you ask that to OP ? I mean the title makes it pretty clear (lol) :

Why did Sony go with Super Smash Bros. too instead of Super Mario Bros. too?