So in a nutshell what OP is trying to tell everyone:

Arcanist - great utility and survivability, what ever damage, uses include: killing lvl 49+ mobs in outdoor areas, FATEs
Summoner - great Damage (who cares about utility and survivability, dont stand in the red/pulse), uses include: killing lvl 49+ mobs in outdoor areas, FATEs, dungeons, Primals, EX Primal, CT, Coil, etc.