On a related note, what clipless setup would be good for a novice (ie, which clips in/out the easiest), Look/SPD-SL/Speedplay?

I keep reading all sorts of great stuff about speedplay on here, and it makes me wonder why the look style clips are still so popular.

I use SPD right now, but would like stiffer shoes which mostly only seem to come in 3 hole configurations. I'm still a bit paranoid about unclipping at intersections.