Well Bendo walks around at 180 so it would be better for GSP to fight Bendo instead of Anderson.
The only threat that Bendo could be to GSP is with his heavy leg kicks but thats all.
Bendo is a good wrestler but he had some trouble with Franky's wrestling( small lightweight) so he will not be able to outwrestle GSP.
Sorry for my bad English guys.
They both have big legs