I built my first trainer, a Kadet MkII. Added an extra bay to each wing and took out about 1/2 the dihedral. I'd say it's my favorite because I learned to fly with it. Unfortunately, I also learned how to mid-air with it, with some assistance of a club member and his 1/4 scale Cub. He survived, I became balsa confetti. I have a Hobbico Superstar 40 that I bought from my nephew because he gave up on it, but I don't fly it much any more. It is a good plane, though, and lots of fun to thrash around.