what i like to fight in so far. you?

http://www.wowwiki.com/Instances_by_level

Ragefire Chasm (RFC) 10, 15-21 (9-17)
Shadowfang Keep (SFK) 11, 16-26 (13-21)
Scarlet Monastery: Cathedral (SM) 21, 35-45 (?)
Blackrock Depths: Detention Block (BRD) 42, 47-57 (?)
Lower Blackrock Spire (LBRS) 48, 55-65 (51-62)
Hellfire Citadel: Hellfire Ramparts (Ramps) 57, 57-67 (57-72)
Auchindoun: Mana-Tombs (MT) 57, 62-71 (61-72)