I have a method to pick between equally performing products.
Go to newegg and find the candidates.
Filter on the most reviews by verified buyers.
Then look at what percent of the reviews have one or two eggs indicating some sort of a problem.
In particular, look at the reasons for a bad review. Some are not very valid, so exclude those.
In this case, I would forgo the slightly higher performance of the gigabyte in favor of the msi which has fewer negative reviews.