Whats a better snowboard K2 Darkstar wide or K2 Parkstar wide?

I am buying another board for next season and i like this two made by K2, and i want a board for jibbing rails and boxes but i want one for jumps and half-pipes, also i were a size 11 boot so do i need a wide board? i have a regular sized board but after landing bigger jumps i became unstable. What should i do?