Plenty of good choices. I chose Cherokee for good fit, comfort and pockets. Others may look cooler, but these had a good combination of qualities and looks for the price. You'll use then after you graduate too, so pick 5 sets you like.
PVS will ruin any set. So but at least 3 sets.
Leave one set ( in fact a head to toe change is helpful) at school in case you get thrown up on.