Experiance alone;
ASUS Mobo's BIOS takes a long time too stabilise apon release. Gigabyte Mobo's are generally very stable.
If you want help...
Go on
www.scan.co.uk, (I know you do not live in the UK but use it as a refrence). Have a look @ the most expensive 1155 Mobo's then go down to one that suite your price range and do a review search. Do the same with every componant you buy. Find one in your price and compare it too ones around.
Brands to look out for:
Gigabyte
XFX
Corsair (PSU's are brilliant)
ASUS (becareful can be quiet dodgy)
Also, I forgot to mention, invest in a GOOD case and a MODULAR PSU or you will suffer.
I will also suggest noctua air cooler
Remember, look @ your price range and compare all the products @ that price range with the aid of google. You CANNOT go wrong. I suggest you look over forums when you search them too as people always report problems. Its all about research, do a lot of it, you have time. Reviews and benchmark comparision sites are simple:
E.g: ASus mobo vs gigabyte mobo.. Theyl do a test with the same hardware (minus mobo) and who ever wins you buy on top of all the user opinions you read.