To clarify, I haven't been through most of these instances so I'm definitely going to go through them all before hitting the Outland's instances ... just wanted to know which level you guys would recommend.

Another thought was to finish questing in WPL, EPL and possibly Silithis, go to Outlands, finish all the regular quests there for all the great gear then come back and do all the level 60 instances. Any thoughts?

My goal is to complete those instances where it still had some challenges (with mobs being green or better) instead of just rolling through them like a hot knife on butter. :P