The Avistar is a very good choice for someone with some experience yet still needs a trainer. The Avistar has a semisemetrical airfoil wing thus it's acrobatic potential is a bit better. The other trainers you listed will do the same acrobatics, but the Avistar will make them look a little prettier. Also with a little less dihedral you get more of a stablized sport trainer out of the deal. So if you are comfortable with your previous planes I would recomend the Avistar to you as well. However, it comes with a wimpy OS .40 LA that will be worthless to you later. Get the ARF and peice it together with a OS .46 AX or a Thunder Tiger .46 BB Pro, and since it seems your in this to stay you can get a decent transmitter while your at it all for about what you would pay for the Hobbistar 60. I will go do some pricing and chime back in with an example.

PS: The advantage of the Hobbistar 60 is it's big and easy to see. Seems like that is not an issue with you since you are used to looking at those little Cub's of yours