I just finished reading Logical Chess Move by Move (should have read it before) and I just started with the Classic My System. I'm still on the beginners' part that talks about the center (can't wait to get to the positional chapter) and Nimzowitsch posts a game in which he says Qe2 is stronger. Here is the game.
[FEN ""] 1.e4 e5 2.f4 d5 3.exd5 Qxd5 4.Nc3 Qe6 5.fxe5 Qxe5 6.Be2
Nimzowitsch says that in the arising position Qe2 is stronger, why? Because we would have a development advantage of one piece? That doesn't look too of an advantage to me? (Note that Qe2 is referring to white's 6th move.)