I would like a Sprint that I can use as DRG that doesn't cripple my ability to do damage long-term (Invigorate can only do so much). On the flip-side, I really enjoy being able to Sprint on my SMN without being penalized in any way. An MP-dump Sprint on my DRG would be really nice to have.
Maybe if, as a melee class, I had an innately faster runspeed than ranged classes (as they do in many other MMOs) I wouldn't feel lacking for a Sprint. As things are though on certain encounters MP based classes who can Sprint freely have an advantage over TP classes when dealing with boss mechanics.