looking to get a bike off craigslist for the local commute:

Trek 330: 170MM Sugino VP cranks. Suntour Accushift Derailleurs. Suntours Index Shifting version. Dia Compe brakes & levers. Weinmann Rims with sealed bearing hubs. New tires and cables replaced.

Scwinn world sport (basically unridden), early 90s.

Bianchi Sport sx - 12speed, new tires. components?

all pretty much same price range. each in good condition any of these i should avoid, or is one particularly better than the rest?
Thanks for suggestions!