Posted this thread on 29er components forum, but then I thought that this forum might be more appropriate for my question.

Specialized Butcher 29x2.3 front + Purgatory 29x2.3 rear

or

Bontrager XR4 29x2.3 front + XR3 29x2.3 rear

Anyone try both of these setups?
Which setup is better for AM/trail riding, mounted on a long travel FS 29er?

Thx, Mo.