very easy to choose... i admit funhouse is a positive nostalgia item, but the gameplay ... to resume very shortly : its a 3 shoots game
than if you're a collector, may be you'll go for FH
but if you're a player, without any doubt, X-MEN is the way to go, even more in LE version, the magnet-spindisc is a wonderfull gimmick
and with last code, this game is more than very good (no matter bad reputation it still gets nowadays)