Either of the planes you have chosen will be good. I personally like the Sig plane as a first choice. It is available as a kit or ARF. I have not been satisfied with the quality of the Global products (Magic specifically).

I would not suggest you try using a mix in the beginning. These planes have very thick airfoils and will fly well slowly and are easy to land if set up with the low rate control throws. The mix to slow it down can cause an abrupt stall which can be a problem for the beginner. I use 2 mixes on these types of planes.
1. Elevator to flap for "wall" maneuvers. This also works well for inverted "harriers" and "elevators"
2. Landing mode is set up with the flaps raising as spoilerons. You will need to mix in some up elevator to keep it level. Flaps at 10 to 15% (raised) and up elevator at 5 to 10% (up) should be good to start. You can land in this mode with the nose high and "harrier" across the field. DON'T TRY THIS LOW UNTIL YOU ARE COMFORTABLE WITH FLYING IN THIS MODE! You will need to try this at altitude and know where the mix switch is to turn it off/on as needed.

EXCAP232