Sentinel -> Rampart -> Hallowed -> Sentinel -> Rampart -> tank swap. I haven't done Odin in forever, though, so it might be better to go Rampart -> Sentinel -> Hallowed -> Rampart if the tankbusters are too close together. I do remember Odin sucking when I was leveling my alt in 3.0 though, but I was also a DRK so.

Alternatively, you could do what I ended up doing, and grab random lvl 60 people to undersize it.