This is a bit late and I'm sure you've found somewhere comfortable to hunt. But that being said, Ruins of Illsalin is a paladin playground till around 87. I was swarming the mobs there for aa in the 80s, but in the 70s you could solo singles and doubles. Try it with and without a merc (ymmv).
For a spell lineup try 3 stuns, Ward of Tunare, Trial for Honor, Benediction, and Burial Rites.
Enjoy and welcome back! Paladins have gained a lot of power in the last three expansions, and progressing through the 80s will unlock some fun new spell lines and aas.
Edited, Jan 24th 2012 11:38am by CandaraFR