Replying to Foils, kamasutra or get'n trouble ? need help

Hi everyone !

first of all, sorry for the following english, I usually speak french, and that's just what I learned at school.

I need some advices before buyin' my next skis!

some infos about me:

1m78
76kg

60% park
30% slope? ( right word ? I meane in french it's "piste" )
10% backcountry

So, I can't choose between those 3 skis, foils, kamasutra and the get'n trouble.

I need a ski wich is fun to ride, with a good pop, not too heavy I guess... But I still wanna carv and stuff, I like to go fast ( like every one I guess ), so I don't know...
And tell me wich size is the best !

help me !

Thank's a lot !