IMHO (having compared both on the WP6 with transparent opus and all ML ref gear), the 33H is clearly the way to go if you like the ML sound. The 336 is far less subtle and a lot less involving to listen to at length... I auditioned with two of my friends and we all had the same experience (which, incidentally, went against my expectations).
If possible, you should definitely go the extra distance to hear the 33H.
Good luck,
Jacob
If possible, you should definitely go the extra distance to hear the 33H.
Good luck,
Jacob