So my first red toon will be....
 

a cleric! good or bad choice?

Good. As long as you're OK with not getting the kill shot glory

As soon as I played a friends rogue, I knew I wasn't destined to be a great cleric.

Look up the critically acclaimed Swish cleric solo guide on the wiki under "Guides". Not written with PvP in mind, and avoid Unrest unless you're twinked - shit's just waiting to go down there most days :)

Check surroundings for plutonium as the levels may be come unsafe.

Everyone needs a Cleric!

Is Mrbigs still around, or did his guild make him stop griefing lowbies to maintain their white knight image? If he's gone, Unrest might be ok.

solo'd a cleric to 35 in unrest in like a little over a week casual play, shits easy, id recommend there at around 15 starting off with death beetles around ent/yard then moving into ghouls then fireplace.

Same, Gaffin knows what he's talking about.