Replying to Time For some new twins....suggestions?

After working all summer its time to start buying some gear. My two pairs of skis I have right now are last years K2 Ak Enemys, and a pair of 3 year old Rossi Pow Airs. The Pow airs are really trashed and I'm looking to upgrade. I don't really have a specific company I like so I'm looking for some suggestions.
The main use for these skis would be backcountry kickers and then in the terrain park. I use my Aks for everything else. Whatever I get I want to be better landing in the powder then my Pow airs wich sink all the way to China on big jumps.
I don't know if i should get a fat twin thats smaller then my Ak Enemys like the 175 Pocket Rockets or little Big Fats. Or should I get something Like Scratch FS or K2 Public enemys? Im 6'4' but I only way 170 pounds.
I don't have that much money to spend so cheaper is better.