samsung, no questions asked replacement for my 850 pros
Hmm, back when I had sammy units, I had the worst time with trying to do RMAs with them, everything from the web site saying that it was a invalid serial #, to calling them up, and then being told I need to e-mail a 3rd party that handles their RMAs, and then what I got back was a refurbed unit, and it took 2 weeks, and unless they changed things around since that time, they were pretty much at the bottom in terms of RMA support.
I say Intel & Crucial are the leaders so far.
(OCZ was up there as well, but they changed their warranty service, so, they got knocked off).