All of those look fine, and are of similar quality, except maybe the Univega- that one is a little better (downtube shifters and no "turkey levers" on the brakes). But, they're all priced about double what they're worth, being 27" hi-ten steel mixtes. If I had a gun to my head to choose, I'd get the Nishiki after bargaining down to about $125- at least the rear brakes are in the right place and it has aluminum rims.