What do I like about Corsair? They've been in the industry since the last time I had a gaming PC. The last time I built a gaming PC, about a decade ago, Corsair was making quality RAM for gaming enthusiasts, and they still do today, albeit with a wider product line up. They make quality products, at reasonable prices, and in addition to that, they're holding this great contest right as I'm about to build a PC gaming rig from scratch.
(After giving up my gaming PC when I moved to Japan, I've only gamed on consoles [PS2 & 360], but the console/PC gap is too big to ignore, and now that I'm back in the states [yes, because of the earthquake and radiation] I'm rewarding myself by building a gaming PC after I pass my next Cisco certification [that I'm taking in January]. Any of these kits would go a long way to helping me build an awesome machine with my budget!)
I've yet to be disappointed in any Corsair product I have tried. Their products perform well, and most importantly are reliable, and the warranty support is top notch!
I have to say I like Corsair for their quality components and stellar customer service. In fact I recently had to send in my old TX750 and they replaced it with a brand new TX750 v2 unit! You gotta love that...
I always preferred Corsair memory for my builds, but I love how they expanded their market to cases. I love the clean designs and smooth finishes. Reminds me of the quality ATCS.
Corsair is always on ball of everything the computer enthusiast wants, literally it seems everytime I start looking for a product not to long after corsair is releasing a product that is reasonably priced, and well built. IE keyboards cases, headsets and SSD's
All the corsair hardware I've ever had has been rock solid. In fact, I've never owned a corsair product (and I've bought a lot of your ram, and a few power supplies) that has ever been DOA or defective in any way.
What I like about Corsair is how they gave out a huge amount of stuff at the Hard|OCP Texas Gamexperience in July. Corsair cares more about their customers than a majority of enthusiast geared companies.