I would really like some comments on specific primary/secondary combinations that are the most suited for solo PVE play
I have been told that W/MO works well, but I would really like some other combinations that have an advantage in this area. Are some of the casters well suited?
I have no interest in PvP whatsoever

I get queasy at the thought of fighting other players. My boyfriend loves it, but I just do not like it at all. I just like to play against the environment. And since PvP is out of the equation, there have to be some more tailored for going it alone.
Note: I am going to make a group only healer too, but sometimes I cannot play long enough to get with a group and want a Soloable PVE character for this.
Thank you!!!