Great discussion.

The last few years I have alternated back and forth between clipless and clips. When I plan on doing some day hikes or walking, I will use Keen sandals and clips. If I plan to bike and cover a lot of ground, I go clipless. The reality is, I do equally well with both and can cover as much ground just as fast with sandals and toe clips. When I am using one, I really don't miss the other. It's funny because I think most of us had this OMG experience the first time we tried clipless and wondered how we ever biked without them.

I think the choice depends on your riding style. If you use good form and spin, you probably would be better off with clipless and your knees will also be better off in the long run. If you just push like most of us do, then I doubt you will notice a difference.

Clipless are better if you have knee problems because they allow your feet to float. Platforms give you more positions but they don't allow for flotation especially if you are using a sticky pedal with pins.