I've used each of these:

◘ Delta Half-Clips
-These are Easy Mode, and great if you're completely green to the idea of toe clips. They've served me just fine, even though they lack the true gripping power (the point of which is to keep you from having to press down to keep feet on the pedals after a downstroke) of "real" toe clips. I'd still use them if they were my only option. As usual, not *all* shoe types/sizes are accommodated, but these worked well on my first geared commuter.

◘ Origin8 Straps
- These are "OK" for the price, but honestly I found them a little cumbersome to keep adjusted at the "sweet spot" (just enough grip to hold tight without making it difficult to slip back in). On top of that, they don't last too long if you happen to ride in inclement conditions.

◘ Sunlite Toe Clips
-These have actually become my favorite foot retention method; even though the straps themselves are cheap, I happen to have leather scraps lying around that have served as good replacements. It's not too difficult to "clip in", so to speak, and they hold *just* tight enough to do the job. On top of that, they're quite stylish, and most people would never guess they were cheap-tier clips.

◘ Power Grips
- I didn't enjoy these. On top of having to put them at the largest setting just to accommodate my big feet (in sneakers, mind you), they rubbed against the pedal arms to where you couldn't roll the pedals backwards in order to properly "clip in". They pretty much stayed facing downward the entire time, and this was my primary gripe. Even if I had purchased the X-Large version of these, it would have retained the same fundamental problem, with regards to feet as wide as my own.

As always, YMMV, but my experience made the Sunlite X-Large Toe Clips the best choice for me, above all, with the delta half-clips coming in second place. Hope this helps.