My favorite WMS game is easily Double Stampede Deluxe. I just can't get enough of that game. It's fun, it's loud, it's exciting hearing those Bonus symbols CLANK!!!! when they do. If I had this game in my house, I'd probably sell my car and quit my job.
I'll have to get back to y'all on coming up with 4 more, I forget who makes what half the time.