I use SPB Mobile Shell 2.1 with a modded theme I found on XDA-Developers. But there are some out there that I plan on trying.
I have tried the iFonz - did not like it too much. I tried pointUI, it was not bad. I just am more concerned with a nice finger friendly interface, and not with having it look like the iPhone (that's why I was not too fond of iFonz).
