It ALWAYS depends on the level. For example, in "The whole Freaking Fauna", a Single Player level of mine *struts* there is a swinging vines area. Spaz has it slightly easier there. However, in most swinging vine areas, Jazz has an enormous advantage.

Of course, when in TSF, choose Lori. Second best to being able to play as the Jazz from JJ1. No special moves.... a real challenge.