Going in the back door of strat can get you 2-3 real easy shards. Scholo isn't that bad except for the mobs that are immune to magic(good luck getting to Jandice without a felguard). Brd is always fun, and many bosses in LBRS are fairly easy, the trash pulls are a pain though. Ubrs needs 3 people to start the first boss, but can be completed easily with 3 people. DM is always a good time as well, I just keep forgetting to bring the stuff to try and solo the Warlock mount quest. Not sure if it can be done but it would be a blast to try.
Have yet to try the lower outlands dungeons.