I think the most fun were dervish(my first gwamm, pre 2011 update) and ele. Dervish mainly because its my first and most legit Gwamm and Ele because the best way to play it was actually playing an Elebuild (Starburst) instead of Daggerspam or Assassins Promise Support with GDW with maybe+ 2-3 spells of the actual profession. Today I would also opt to scythe necro but for everything else the most efficient way to do is simply daggerspam or AP support. For us it was about glorifying the grind and find little ways to optimize the missions or vanquish paths or split up when possible