Freedom Firebird, Commander 2, Skyfly, or Slo-V

Those are the choices I've settled on. Here are the circumstances. I want a beginner type plane that I can fly in a relatively small area (soccer field size) that is surrounded by trees.

I want a plane that isn't so fast that I am constantly battling the boundaries. I don't know how fast they planes are in reality...or in comparison to each other.

Which one of the planes would be slow enough to tinker around in a relatively small area?

Thanks
Rob