I didn't track it until SM+ but at 37 when I started there, I was pulling in about 18-30k per hour clearing the SM cathedral courtyard depending on how much I goofed off. Prior to that, I was pulling about 10-14k/hour running quests. By the time I hit 41ish, I was only pulling 15-18k/hour as most of SM cathedral was green to me.

At 42, I went into RFD and was pulling about 15k/hour AoEing down the groups in there. I'm starting Uldaman tonight and I'll let you know how that goes.

This is with a full 5-box team. With just two, I would follow Jame's or Joana's leveling guides as the collection quests will not be such a huge time-sink.