I think you shouldn't spend too much money on a trainer. Most of them are quite similar in construction and flying style. Also you will probably get bored with it after the first couple of months. If I we're to buy one I would probably take the Avistar because of it's semi-symetrical wing. It flies a little better.

Last but not least: Choose a good radio and engine from the start! It will save you lot's of trouble. The trainer model doesn't matter as much.