Thank you all for your quick response!
I always prefer Gigabyte but this time im in dilemma.The price between the 2 motherboards in my country is about the same (Greece).
Things that i liked in Mpower is the look and that they test them with prime95. The only issue that i heard in newegg comments is Mvp not working properly on.
Pff difficult decision to make,but thank you all for your help.