Nebula is one of the most outstanding arcade game console emulators, written by EISemi from Spain, who composed the myth of arcade system board emulators. It supports CPS-1, CPS-2, Neo Geo, IGS/PGM, KONAMI arcade game systems. Personally, I think Nebula is one of the best arcade emulators.
FB Alpha (FBA for short) is a very popular multiple-console emulator for MC68000/Zilog Z80 based arcade games. It has less system memory and lower computer configuration requirements than MAME, and runs faster with better graphics - comes with all features of MAME Plus!. One word, its position in video gamers' mind is now only after the king of arcade emulator MAME.
As a big fan of Sango series game, I have almost played all the related games of this theme on most platforms. From handheld to arcade, and from MS-DOS to PC. Although it has been too many times, yet I still enjoyed that.