I fail to understand people who say shimano are either on or off. I have NO problems feathering mine. I've never had shimano brakes fail on me, and with £60 deores on my downhill bike taking care of world cup descents im not sure what more you want from a brake?
I've never had Formula or Hope brakes fail and have also ridden world cup descents so I'm not sure what point you're making other than you're happy with Shimano. Fine, but the OP wanted comparisons of 2 particular brakes based on experience of a third. Having tried all three (ok, Deore, not XT) I'd say the control of Hope X2s is closer to Formula Oros, power is better, and generally feel more solidly built than old Formulas. The Shimano brakes I've tried have all been good, but they feel different in use, so if that's a factor in choosing which brake then I think it's quite a big one where Shimano brakes are concerned.