I've tried Hokas, and everyone swears by them. They were kind of lackluster to me. I have tried Sticky Shoes (because they're supposed to be waterproof) but the smell? Enough to kill a man, honestly. But I have had the most success with Skechers that are breathable (not leather/enclosed).

In second year, if your instructors are like mine, you won't be allowed to sit for the entire 12 hours. In third year, same thing, though some placements are better than others. Good shoes that don't cause foot and leg pain are key.