I've paddled a bunch of boats. Agent, Project, Allstar, Orbit, Scooter, Ronin,...
I think the best boat for freestyle out there is the new Jackson Star series. I like the outfiiting and it feals comfortable, though somepeope don't. And, oh, yeah, the boats throw HUGE air. A little different than the old one to cartwheel and blunt, but still slicy and nice. Their sick. And even though they have more volume than some other playboats for the size range, it doesn't feel like it does. In other words the new boat, although bigger, almost feels smaller than the old one, which is a good thing for freestyle.
But really any of the new boats are good, and the answer is subjective. But if you got the bank, and you can get them to send you one on time, the Jackson boats are the best.
One thing: If you are getting into freestyle buy a freestyle boat. Not a downriver/playboat but the most agressive playboat possible. If you want to through down, get a boat that will do it, and deal with a little punishment when you are learning. It really isn't that much different from playboat to playboat as far as staying upright, it's just some want to do tricks more than others. It just sucks to outgrow a boat, and contrary to what somepeople tell you, its not like the performance boat is going to act wildly different than the entry boat, its just going to do more stuff more easily.
And yeah, I think they come in pink.