You'll probably do fine with G.Skill for a newer computer, and they've got a lifetime warranty, but personally I always go with DMS--been using their stuff in computers at work for years without any problems, and the one time I got bum sticks from them (DOA, not failures after time), they replaced them no questions asked.
And while yes, even total junk RAM probably will work fine, the two times I've had a problem caused by bad RAM it was a MASSIVE pain to isolate, so if there's a better chance of getting a good, reliable stick from somebody I'm sure as heck going to go with them--the hassle and time isn't worth it.