Best X68000 emulator?

[ManekiNeko]

So hey, I like the X68000 and all it stands for, but I can't afford to shell out big bucks for the system and its games.  I'll have to settle for an emulator, but which one should I use?  Right now, I've got old copies of Keroppi, EX68, and the newest version of XM6.

Also... does anyone have a copy of a game called "Galaxian Spoof?"  I wouldn't ask, but I'm pretty sure it's an unofficial release designed by a hobbyist.