Look for the most helpful bike shop then buy the model they sell. Of the ones you listed I like the Giant FCR3 the best, because I like the look of the curved forks. The forks are chromoly which is better than hi-tensile steel. The tires dont matter because it is easy and cheap to change to ones that are either lighter, fatter, faster or more punture proof. Allow for spending $100 or more on accessories (pump, emergy repair kit, under seat bag, water bottle & cage, lock, computer)