I'd happily shave with all of these ...
Naturally, the Gillette is the star here so use that and enjoy it. Despite the bent prongs on the open comb, again, worth a go but bear in mind many of the non-Gillette open combs do indeed appear very similar to the Gillette design (which must have had a patent expire, or something for the proliferation of such razors from all and sundry) from my experience of a number of off brands, some can be vampires! The one on the left is one that I think I've tried before and thought it very mild. I think it's a leg shaver (say, Leslie or Velvet brand ... or clone) and designed to have a bit of pressure used, the solid comb manipulating the skin and pressing the hair out for shaving. On legs, not necessarily faces.