i gave a Merc a try and i have to admit does suit my playstyle, wanted to ask though would playing a Sage be a lot different? doesnt have the heavy armor of the merc but i d be able to rdps and heal effectively wouldn't i? my friends and gf wont change sides

hehe so i guess ill need a second character to play with them, and keep my BH for pvp and when.
I guess my question is would playing a Sage be THAT different ?