I too love Chris Granner. Really impressive what he could do with limited sound technology in the late 80's/early 90's. My personal favorite is White Water. So cool how the music builds as you work your way up the river.
Chris is on record saying his favorite pinball music he created is for Taxi (which I also love). He said he was going for a Little Feat-esque jam rock sound.
Clay Harrell did a really great interview with Chris that is still available on his pinrepair site. Link here: