Sony fan. Simply because franchise/game wise they are way ahead of the competition. Theres just too much variety in their quality games. Nintendo being a strong no. 2 because while Ive learned to keep my hopes in check with them, every now and then they release something like BOTW. And im pretty much liking Astral Chain so far. The Switch is really the best console they've had since the SNES.
I do not care one bit for Microsoft and most of their franchises.