To revise my comment, I guess I wont say its way better but IMO, HTC has an edge. I personally like the vanilla android UI. No skins, just open to do what i want.
Sense as far as UI is concerned; is better then Motoblur. I have messed with the X, its nice but ehh, something about it turns me off. Touchwiz is not for me although is simple to use which is great for others.
But for those who like home replacement apps (such as myself) can solve alot of UI wants.
Its kinda subjective.