Sorry. I've only one pair of shoes that work on two sets of pedals, so can't make a comparison. You are going to love the clipless though - once you get used to them. My only regret is that on my hybrid, I got platform on one side and clipless on the other. For me, clipless on both sides would have been a better choice, and that's what I have on the newer touring bike.
__________________
Some people are like a Slinky ... not really good for anything, but you still can't help but smile when you shove them down the stairs.