It's an ace tank spec imo. Given the fact you can switch between heals and tanking Cleric is a very useful class to play as you can slot in to most groups. I tanked on my IT runs and healed through the DM runs.
Is anyone else slightly disappointed with the Warriors in Rift? I don't know if it's just me but it seems to be the only class I don't get along with. Aside from one tanking spec that gives you god knows how many passive buffs I don't think there's a lot to them. The Champion/Paragon options don't seem to give out as much dps (at low levels anyway) than I'd like. Then again, the more I level my cleric the more options I have and I'm a lot more effective now than I was say 10 levels ago (mid thirties atm). I know that sentence is true with most games, however with some mmos/rpgs I often find myself using the more powerful versions of basic skills as I level. Rift is pushing me in to a different routine and I like it.
Not sure, my warriors are still quite low levels, but I am really loving the Paladin and Champion lines, Void Knight looks like an interesting line too. My problem at the moment is that I am loving all of my characters and the way each of them plays, so kind of hopping from one to the other a lot