If she doesn't want to play a caster then SMN is indeed off the table (even though it uses instant casts 90% of the time as opposed to hard casts).

MCH is a good pick for an easy physical ranged dps and in the melee segment monk is probably the easiest to get into (not as many buttons as the other melee) and easiest to get used to (altho there is a lot of room for optimization with timing your big skills in a group setting but thats not relevant for this topic).

Some would say Reaper perhaps, but the job get's lots of stuff to track at level 90 so personally I wouldn't give it the easy-job stamp.