I like them. What kind of surface will they be sitting on? Can they easily glide over a rug? Is there some kind of floor protector, like a plastic knob, on the legs?

They are both nice. Impossible to give definitive answer without seeing table and room.

The second picture I would choose above the first. The first chairs you have remind me of waiting room chairs. The second chair, I like the way the back is angled backwards slightly, and I just prefer its overall shape and color...and the fact that the tufting isn't so intense, as in the first chair. Honestly, I do not like the first chair(s) at all, for dining room table chairs, anyway!

Makes me claustrophobic the way the sides seem to wrap. If you ever have larger guests I would say it would be very awkward for them to sit comfortably.