I just chose the P55 UD4P from Gigabyte for my i5-750 update. I really don't attach much for USB peripherals, so the USB 3.0 means nothing to me at this point.
OC'd my i5-750 to 4Ghz @ 1.32V in about 10 minutes. Was a piece of cake. Reviews on the UD4's have generally been pretty stellar as well.
Gigabyte and Asus are my first choices. Have had luck with both so far, and both always get good reviews and reputations.