I wouldn't go as fa as saying its the best 470 out there, its just a factory OC'ed card with a fancy sink. To be honest I would rather go with the new MSI Twin Frozr GTX 470.
MSI Twin Frozr GTX 470 is a good card too. it is cheaper than gigabyte's. but MSI use 2 fan instead of 3 fan so customer claim MSI's card failed on 800MHz OC. If buy graphic card today, I will pick Gigabyte 470 for sure. Gigabyte product has better quality overall