But, as for me(or people like me), I always meet UAC dialog. Vista kept asking Cancel or Allow? Cancel or Allow? Even when I'm trying to make Everest autostart, Vista tells me that it has BLOCKED Everest from starting. Uh!
In fact, I think sudo is really good. Once you have authorized, you don't need to do that again in a time. I think UAC in windows 7 is prettier. I hardly meet UAC dialog. (Although there is a label before the link~)
Everyone has his choice, huh~