Subway is pretty good, and low-priced. Quizno's toasted subs are very nice. I've never heard of the third one, whatever.
There is Port of Subs. All the ingredients are fresh. Subway may have the same, but the bread, cheese, and meats are all sliced fresh. It may be a little expensive, but they make the best sub sandwiches I've ever eaten.
I've got to go with Quizno's on this one, the may be a bit mor exspensive than subway, especially with the $5 foot longs but they were the one's toasting their subs way before. However here localy in Colorado theres a few sandwich shops here called Silver Mine Subs, they rock, they're open till 3 AM and deliver, which is awesome when your in college!
None of them MUWAHAHAHAHA. but if i had to go ith one of them subway. It's really the only one i have gone to. Socal's not the brightest place for fast food