I think the second vocal sounds fuller (the one with less reverb) Are you using a quality effect? It sounds kind of thin and washed out in the first version. The second one has something other than just a new FX level, am I right?

Mixing is often the most tedious part of the recording process. take your time, and don't stop till you get it the way you want it. Walk away from it for a day and come back fresh ...... Listen at different volume levels. Ask for suggestions, like you did here. You'll eventually get a mix you like !