Duo xp spot suggestions

[Tethler]

Heya pals, I've been duoing with my brother with some new characters recently. He's playing a twinked fungi tunic rogue and I've been leveling a wizard to use as a port bot, so he's been rogue tanking while we just delete mobs. It's been hilariously effective so far, but now we've reached 40 and mobs are starting to do enough damage to slow things down, as expected.

So, I'll be switching to a 51 pally alt and he'll remain playing the rogue. We plan to just ping pong aggro to spread damage and between deepwater helm and fungi tunic, keep things moving that way. Are there any out of the way spots that would be good for a pally rogue duo? I was leaning toward maybe CoM moat, but sometimes the zone gets busy, so ideally somewhere off the beaten path would be better.