I don't favor any particular case. I look at cases and see what will work best for me. It has to be funtional, first and foremost. It has to be good quality. It has to be good looking. It used to be that good was just nice to have, but now there are so many options you don't really have to mod a case unless you want to get a really unique end result.
Right now I have a couple of ThermalTake cases, a Fractal and a Phanteks. I'm selling one of the ThermalTake cases and the other I plan to switch out to a Fractal R6 if I can't find some extra drive bays. The Fractal Node 202 is going to be replaced by the Loque Ghost S1 as soon as they start shipping the Kickstarters out. Lastly, my main PC is in a Phanteks Enthoo Pro M and I'm going back to Lian Li later this year when I build a new...ish system. I'll be getting the PC-011 Dynamic.
Here's a list of mainstream brands I typically look at when looking at cases...
There are some off the wall ones I've used like Apevia that have been okay as well as some low production cases like the Dan A4 or the Loque Ghost.