After listening to all of them closely, I decided to get a bit of variety and liked the sounds of these:
AdPacks:
1) Fairfax 2
2) Reel Machines
3) Vintage Dry
MidiPacks:
Rock Songs
Percussion Beats
Blues (coz I luvz da bluez :))
I can't remember which kits I got, but I think they're the congas, picolo snare, & the big bass (purple drum)).
Of note, I use the Percussion Beats midi with other drum kits (i.e Reel Machine/Fairfax2) and it's really fantastic, easy to use stuff. Also, as someone else mentioned, the transform feature is very useful as well.
I want to get as many of their Adpacks as I can, but a bit broke atm........I'm ready to trade some of my Maschine Expansions or even other plugs as I'm totally Addicted to these drums.