There's a new feature that was introduced in the 2012 release of Map 3D that hasn't gotten a lot of use, but is really useful if you want full control over your labels: Label to Text (MAPLABEL2ANN).
It lets you export your dynamic FDO labels to AutoCAD Text layers (or MTEXT), where you can edit to your heart's content - you can reduce the number of labels, move them, and generally adjust as needed. One caveat: they are no longer dynamic, so if you change the FDO datasource that they reference, the text won't change. Because of that, it's most valuable as a printing prep tool, but it is useful you need labels to stay in a particular spot. Here's a short video of the process: href="http://screencast.com/t/uk6q3yOejC4i