What is the best motherboard manufacturer based on reliability, performance, setup, functionality, user friendliness, customer service, warranty/RMA etc.
I'd have to say for Intel based system it's definitely between Gigabyte and Asus. As of late I have been VERY impressed with Gigabyte boards specifically my GA-P35-DQ6 rev 1.0 board.
My Asus P5W-DH board was pretty good but nowhere near as good a clocker. My Asus P5K-E WIFI/AP is pretty awesome so far though.