Heh, well of course the 's' variants fixed ram clearance issues. It's a D14 with only the center 140mm fan, the fan that sits in front isn't there to be a ram issue.
Yes, much better test. I personally like the tests run by frostytech, they run a Hotspot, not an actual cpu, dial it in to 87 and 150w for the 115x and 200w for 2011 OC simulation, with a result above ambient. Lot more realistic and applies to more than just ppl at 22°.
How to fix. That's not easy because some points are very valid. Most ppl are only familiar with coolers like the h100i series, which has abysmal fans, the h110 gtx probably the worst culprit with fans that range from @1300-2700 rpm. Monster cooling ability, over the top price tag and ungodly loud.
I personally prefer AIO's, I much prefer the aesthetics of not having a huge twin tower monopolizing the window. I prefer that all that cpu heat is shunted directly out of the case and the fans actually work as exhaust, not just fans in the middle of the case helping circulate air. Costs aside, I find AIO's imminently more practical, easier to clean. But thats me. If you are building a pc and can afford what it takes to push a 4.6 or better OC, you can afford big cooling and an extra $20 won't be an issue. I've also got an h55, same ability as a hyper 212. So much easier to mount, I hate the 212 mounting system. Has a nf-f12 fan on it and it's dead quiet. Sure it cost more, but it was worth it not to have to deal with the 212.
There's pros and cons to both. Air coolers do do the same job as an AIO, generally the prices are mismatched and if you get a corsair, yes they are louder. Wonder what the performance of a D15 would be with Corsair fans, and the volume, because I know what the performance of an AIO is with both a Noctua and a Phanteks fan.
I did try out big air for this 3770k build of mine, namely the Raijintek Nemesis. Supposedly on par with a D14 or slightly better. Had minimal clearance on the gpu, ram, case etc, so just an inconvenience in mounting. Just 1 problem. The heatpipes on the back side actually come into contact with my VRM heatsinks. Turned the cooler 180°. Same issue. No way to get a solid mount without a 90° turn, facing the fan up for top exhaust to clear the gpu. Now the issue was I couldn't reach the far side screws nor the lower fan mounts without pulling the ram and gpu out and squeezing a screwdriver in on a 45° angle for the screws. Not exactly ideal and more trouble than the $55 price tag was worth. Went with the NZXT and couldn't be happier.