My Hope Headset is still running like new after 3 years and some serious abuse. The only downside is the bolt of the head doctor. I broke 2 of them. You cant tell when you have applied enough torque. Using an Azonic Head lock now.
I would go for the Formula Oro's or the Hope Mono Mini's over the Juicys. Uchh.
XT cranks are not the best with mud (my LBS has lots of warranty replacements with them) The Truvitive X pipe and RF X type are not that great either. My Deore crankset is the best I have had.
Agree on Easton, Thomson, and X9, Although IIRC the newer LX rear mech is the old XT of which I am still running. Best value for money rear mech IMO.