Stock Nexus one VS Stock Desire = Desire wins over UI but the desire gets update late

Rooted Nexus one VS Rooted Desire = Desire wins also as it can imitate almost everything on nexus one except voice cancellation and trackball if u consider that an advantage

In terms of performance, its equal as both runs on the same chip but desire gets a few extra marks thanks to the additional lil bit RAM xD. Ive tried the stock ported FRF91 on my desire and it does have the nexus one feeling as ur getting vanillla UI and sorts but lacking of SenseUI seems like a big lost for me. To me SenseUI is a great advantage but nexus one can also use SenseUI on custom roms thanks to the ported ROM made by devs.

Nexus one seems to be winning over faster update but the desire can also experience it on custom ROM so it is not quite an advantage.

just my two cents, this can be a big debate indeed but thats from my own opinion, it differs for each individual. I have no regret choosing Desire over nexus one and not waiting for Galaxy S. Im very comfortable indeed with the Desire
Got my Class6 Trancend 8GB at Sri Computers for RM75.. if u go on weekdays perhaps they have stock. If weekend surely sold out as many people is hunting for it.