Cresselia is alright. It's better then the other one, but only slightly. The attacks are a lot better, with Future Sight being good if you have to start with it, and the other attack being a bit on the low side of good damage, but you do give up 10 HP to get these attacks. If, however, you are going to Level Up next turn, then you may as well play this.
Looks cool though.
For no.1, I'm expecting it to be Aerodactyl. I can't think of any good reason, it's just what I think it will be. However, only time will tell.