I always did SM to 45 then Straltholme to 60. Stralthome is great exp for those levels.

I never liked Ramps that much, but two big pulls in Underbog with an 80 pally, 80 resto shammy, and just 3 level-ees worked well. Then that same set up from 65-68 or more in UK worked well for me after underbog.