Hi
I've tried a lot of suits over the years, and the one which has been the most durable and comfortable is the O'Neill Psycho II. They are pricey, but the one I am using is now in its third season and still in fantastic nick. They are super comfortable and very warm. O'Neill in SA dived into the gate in the wake of the world ending, but I see that they have now been bought out and the shop in the V&A is open again.
In terms of the balloon legs, I use board leash ankle straps and that solves the problem.