I haven't messed with any of them yet, but from the research I've done I know I'll need cfw of some sort for what I'd like to do. I was between unleashed and momentum but if I understand correctly momentum is basically unleashed+, and I like the easy spoofing of mac addresses, so I'm going with that.
When you say "add any app," do you mean any app from labs? I've been wondering if it was possible, like if all apps for ofw work on momentum too. My mailman needs to hurry up! Lol