A lot of people complain about this but I love Blur on my X. Granted I came from the Storm 1 so almost anything is better. I get no lag and love the overall UI.
Thats 95% of the problem. In my opinion you shouldn't even be sold any Droid until you've owned a Storm (1 or 2) for a year. Then let's hear what you got to complain about.
I had a BB Curve and a BB Tour before the Droid. I am familiar with awful UIs. Perhaps why I was so upset that Moto had to mess with something that was already near-perfect.