Out of the balls you listed, I think the SlayR is the best of the bunch, followed by the Dry R. Remember, personal style plays a big part in all of this as well. The Power groove reactive is a much stronger ball than advertised.To me, it's much closer to a medium ball, than a dry lane ball.
They probably rate like this:
1.SlayR
2.Dry R
3.Punisher
5.Power Groove
Personally, I like these for dryish lanes:
1.UltraSonic
2.Desert Heat
3.XXXL
4.Mercury
5.Tropical Storm
A lot of people like the Sahara, but to me it's a lot like the Power Groove. It depends on your style and the exact conditions,and it's much stronger than advertised.