uRabbit said:Any specific reasons?
Well, all three should be reliable -- or, reliable enough -- for getting to campus & back ...
I presume you want to ride the bikes AS-IS, except for tires + minor maintenance issues.
As pictured, I reckon the particular Schwinn will weigh about 35+ pounds. It isn't clear from the picture whether it has an "American" bottom bracket or an English bottom bracket, but because of the Huret rear derailleur, I'm going to guess that it old enough to have an American BB. The weight could become tedious if you have to lug the bike UP-and-DOWN stairs every day.
The Raleigh might be okay ... some Raleighs from the 70s still had some marginal (i.e., French manufactured) components ... and, it isn't clear from the picture or description what components are on the particular bike.
Although the PUCH costs more, up front, it appears to be in ready-to-ride condition (other than the tires, as indicated by the seller). The Puch probably has a nice enough frame that if-and-when you are inclined to selling it, you will get close to the same amount of money you paid for it (haggle, and see if the seller will take $100-or-less) unless you trash the bike OR if you are inclined to upgrading it, it will be easy-enough to do.
The RALEIGH TECHNIUM has the advantage of being less expensive AND (if it is what YOU are looking for) 26" wheels/tires ... so, the Technium would be a good choice, too. There ARE advantages to FLAT bars if you are riding short distances of only a couple of miles in an area where you have to stop at almost every corner with a stop light.
