OK. I'll give you the same answer I did to whoever it was last night.
I think Asus makes the best motherboards. But they also have the highest prices most of the time.
I also like AsRock and Gigabyte. Nearly all of the motherboards from these 3 companies are good motherboards. We all have different opinions on what we want and what we need, so I point people to lists where they can look at a bunch of motherboards, and then do the research on their own.
This list is from Amazon.com. It lists 1150 motherboards that do SLI and is sorted by cost.