KoF, and lots of it, from 94-98 on the Wii via Orochi Saga, to the PS2 with 98UM, XI, Nests Saga, 02 and 03, skipping out on XIII PS3 because I'm not a big fan of it, may go to it eventually, to 99 on PS1. If only I had the rest of the PS1 and Saturn ones, and the GB and GBA ones, I'd likely be playing those as well. So many games, no chance to master anyone totally due to the sheer number of fighters.