Got your friend invite. Sorry for the late reply
I bought the Reaver and the Scout as my first two characters. I kinda wanted a second tank, and it was a tossup between the Reaver and Paladin. In retrospect, the Pally is probably the better tank but dunno by how much.
The Scout is a really useful dps/heal hybrid who can proc multistrike quite often and pop heal and damage at the same time (and gain a bonus from doing that). She doesn't replace a real healer, so I'm still using the cleric for bosses and raids, but does make the regular stages a lot faster.
At the time of writing, I already have 700 gems though and planning my next characters.Granted, I did buy the "20 gems a day" deal for 2,99 but the game is real generous with giving gems out from achievements and such. Anyway, probably gonna buy the Illusionist next, so I can have someone who can use spirit spells and toss the occasional buff.