I think the new Tabou 2010 is awesome. Having 2 TINY fins as opposed to 1 small one helps with spin out when tracking up wind and when you pop the board it slides super nice!
Just my opinion, i own one and they are the best freestyle board i have ridden!
Peace
My mate has a Mistral Joker it was really nice. All comes down to personal preference man! I'm 75-80kg I'd go for a 100L freestyle if your deadset on freestyle. It is possible to do freestyle tricks on a twinfin waveboard tho due to the shortness of the fins as sflack said. Also save yourself some coin by shaping your own freestyle fin from an old one. Its pretty easy. Just line up a profile from another freestyle fin (or make your own), take the meat off with a grinding disk then sand to get a good foil shape. :)
I have a jp 100ltr, use it for more freeride than freestyle but im trying. Cant really compare it to anything else but if you look at boardseeker.com they have a 100ltr freestyle board test on there, Jp.Goya,Fanatic,RRD etc
fanatic skate 90 or 100 litre freetyle boards are amazing, i went from vulcan to spock 540's in about 3 weeks super easy to use and they turn well and also okay for freeriding, up to you tho ive had my 100l skate for 2 1/2 months now and still loving it,