On both pve teams I did what he just said. Felwood is awesome, some running but its not bad. The zone with BRD is great too, lots of kill quests. Then on to ungoro, which is not bad. Those two zones will put you at EPL for the awesome cauldron quests, then WPL. Then Burning steppes shortly, then off to Silithus and Winterspring until about 59/60. 50-60 goes very very fast for me.