combo platform/SPD pedals for me! i have them on all of my bikes. i very much prefer to ride clipless, but i also really like the flexibility of being to ride with regular shoes if i just want to hop on a bike to run a quick errand. win-win!
for commuting, i ride with MTB shoes with a recessed SPD cleat. i've been using the same shoes for 7 years now! again, i love the flexibility, i like being clipped in when i'm riding, but then i can still walk around like a normal person when i'm off the bike. win-win!