Do both
68-70 Uk
70-71 Borean
71-72 nex + Howling
72-74 Dragon Blight and an
74-75 An + grizzly+dailies(10% of a lv a day or so from dailies)
75-77 Drak + schol(although i kinda hate scholazar)
the rest is cake, if you've been switching in instance's during the whole process you should have plenty of quests to fill in those last levels. Dont forget giant chain's like the dead gods in Zul-drak, or start phasing Ice crown and Storm. Worst case just gather some rest and burn it out in an instance. My 2 cents.