I prefer radiant cuts, although I like ovals a lot. Radiants seem to be a lot different than the typical ring, so I think that's why I like them a bit more. That said, I am not a fan of either setting. I'm sorry and I hope I don't offend you, but the bands are really wide and when I see the rings, my eye is drawn to the band and NOT the stone, if that makes sense. If you like the look of a thicker band, but want the stone to be more visible, what about a split shank setting, like this:
Is that your fiance in the photo? He looks like he is kind of "praying" w/ his hands held like they are, that you pick the smaller radiant, lol!

Is that your fiance in the photo? He looks like he is kind of "praying" w/ his hands held like they are, that you pick the smaller radiant, lol!