Well generally speaking, you can't really go wrong with Gigabyte, MSI, or ASRock/ASUS.
Personally I prefer MSI and Gigabyte, and don't like ASUS motherboards, but acknowledge they make some good stuff, and they're all top tier board makers so should have nice long warranty periods. If they don't and you can't decide (barring some known issue with one of the boards) go with the longer warranty I suppose.
Or if that free USB stick mattered to you
that might sway it.
Edited by RiffRaff (Fri 27-Jul-12 19:53:11)