The issue that leads me to seek an "official" compiler is simply the quirks each of them come with. If there is a "blessed" compiler, it doesn't matter which one, then I can write up the building page saying "use this for building, use whatever you want for your code." As it is now the page has some exceptional issues, like "-D_WIN32_IE=0x0603" that I'm not sure even apply to other compilers. If the nightlies use TDM 5.1.0 32-bit then I'll lean towards that, if 4.9 is the compiler then I'll use that. I'm just a random guy editing a wiki page though so I'm not going to sanction a particular compiler without team blessing.