Whats better playing freestyle with the ball or playing full 90 minutes on a muddy day?

Answer 1

I would say both because working freestyle helps you get down your moves if your doing it right and playing with the ball for all ninety minutes helps you be in shape for the games.

Answer 2

Doing each of these will develop different skills. Joe DiMaggio once said: "Many players practice what they do best, great players practice what they do worst". So, whichever one of these gives you the most trouble, that is the one that is better for you.