I commuted on platforms, SPDs, and clips and straps before settling on Powergrips, which feel like the best match for commuting conditions. Compared to clips, they're a bit easier to get in and out of, don't scrape the ground as much, and having the toe free allows for more fore-aft adjustment and easier adjustment to wearing different kinds of shoes. They also don't scuff the toes of my work shoes like the clips did a little.