Hello, the better plane is not in your list!
I would recommand you without any doubt the GP Super sporter 40 with a 46FX on the nose.

1) very good low wing trainer
2) You have to learn to take off with a tail wheel
3) That plane can do easily the basic IMAC and pattern sequence.
4) I won the 1 st position in my local IMAC competition with the GPSS, in the basic sequence. All other pilots had big birds like Extra, Cap etc...
5) move the CG 1/2 inch behind recommanded on the plan and you can do some 3D stuff.
6) Something Extra is'nt a second step trainer but a 3D plane.
Scoubidou