You can look at pedals to your heart's content and compare the different types, sizes, and weights here
Bike Pedals | Mountain Bike Pedals | Road Bike Pedals - Niagara Cycle I like cage pedals myself. I use a mini-toe clip so that I can use ordinary shoes on one like this
Avenir Pedal Set Alloy 9/16" Axle. Inexpensive, functional, and they last for years and many thousands of miles.