For now Jack is still wearing the Yellow Jersey but if the knee holds on, Tiger might get it soon.
I agree with some posts that Jack's competition was stronger, but there is a change in generation going on right now and when the Garcia, Kim, Scott will shoot their maiden Grand Slam victory, he will then have competition.
On equipment, I don't think it's relevant to say Tiger is favored, he is the almost the only one of the top players who did not gain 10 to 20 yards in driving distance with the arrival of 460cc & High MOI drivers (remember he was still using steel shaft on his driver not so long ago).
@+