RE: Good first plane?????
First of all, heed DB`s advice. Second, IMHO, a Cub is NOT a good primary trainer. I think you`ll find that anyone who says they`re " bored " with a Cub has been flying a while. I`d recommend one of the classics that have trained thousands ( LT-40, PT-40, Eagle, Avistar if you have a good instructor and maybe some sim time, etc. ).