I leave the default Unit frames on my slaves but my healer and Tank use Pitbull4.

If you are using Moveanything you can reposition the default frames to where ever you like. I do not worry about mods going out of style, discontinued or blocked. I run a ton of mods to me it is part of the enjoyment of the game. Having that personal touch or just tweaking a UI.

For me must have mods are:

Jamba
Carbonite
Pitbull4
Deadly Boss Mod
Baggins
Omen