Ok, let's not go off-topic and turn this into a debate over which is better. Each is better in the eyes of that type of flier.

Now back to the question:

Aside from having larger control surfaces, 3-D planes are often lighter, with thick airfoils which allows them to fly at the slow speeds required for the radical maneuvers they do.

Of course, there are some planes, Like Extras and Edges that do not follow the thick wing rule.

I like to think of the difference between the two as the difference between a Ballerina and a Football Player. Each has their different structure, and each has their different abilities.