I'd say that the Raptor 700 would be pretty comfortable, but if you get some high bend handlebars so that you aren't bend over, almost all of the bikes would be equally comfortable (especially with the suspension adjusted to a little bit more comfort).

The Raptor 700 is pretty bad jumping I've heard, and it is a pretty sloppy handler (high center of gravity).

But go sit on them all, and see if you can take any of them for a test ride.

 

Just to consider the KFX is not the only one with reverse, the KTM XC's have them and so do the Polaris.

 

Whoops, forgot that I guess.