I was an SPD commuter guy until 4 years ago when I traded bikes, and two days later, before I had a chance to swap out the platform pedals, I got T-boned by a right-turning car . I was lucky to be thrown from the bike, and I decided that platform pedals are nice for commuting.

I like the idea of the hybrid SPD/platform pedal, using the clipless side on my rail-trail section, and the platform side on the streets.