I have experimented with both hollow ground razors and big thick wedges, and even fine small wedges like Red-Imps,Electric, Kinfolks, etc.

The wedges are quieter, that is the main difference.

The thin hollow ground razors make a lot of noise when they cut the whiskers, and wedges are pretty silent.

A heavier razor also glides a little more smoothly, though if correctly honed and stropped, they should all glide easily without pulling.

One benefit to the hollow-ground razor is that the second pass is MUCH quieter than the first pass, and you can easily tell by sound and feel if a part of your face is shaved completely.

You can also feel this with the wedges, but it is a lot more subtle.

I really felt like I was on top of shaving with a straight when I could tell by the SOUND and FEEL that I was done shaving a part of my face. No need to feel with my hands until the end, for touch ups.