1) Just used my free coins
2) Got a cool mount - some armor (the female lingerie type thing) and some nifty companion gifts!
3) I really was hoping (but not expecting) the mask
4) More unique items like the Mask and Throne, armor, weapons, ect.
Although my guildie did buy like 15 packs - and anything that was duplicated (pink-purple crystals, companion pets, mounts, even gave me the assault cannon for my commando since he doesn't need it) and gave them to the rest of us in the guild - which was pretty awesome
and I did manage to snag the Mask for 2mil. on the GTN