Asus an MSI are both great. There was a good article here on Tom's a few months back, comparing the best 560 Ti's, but I can't find it anymore. I was planning to get an Asus but they ran out of stock, so I went for MSI and it's been great so far, didn't even need to overclock higher than factory OC (880 MHz). It's up to you. The article I mentioned chose Asus as the winner, though.