A perfect pass, a center deal, Domicio's second deal and the clip shift are all difficult. A perfect on the table riffle shuffle is tough.
I think pick pocket magic can be very difficult, watch steals, belt steals, tie steals and so on.
Jazz magic is really tough. Magic with 35 outs and you have to keep on your feet just to see where the audience takes you. Tricks that require estimation, there are various versions of the trick that cannot be explained that are very difficult.