My first kit was a Great Planes PT-60. I definitely recommend it as a first build, but you might not want to build a trainer since you already have one.

For a first build you probably want something with 'slab' sides rather than a 'stick' structure. Even with interlocking parts you have to be sure to get everything straight.

I'm still a novice builder. I've been working on kit number 2 for a year. It is a Tower Hobbies Uproar 60. It's a fairly simple kit also but harder than my trainer due to the way the wings install and the fact that the tail feathers and ailerons are just sticks that you cut, fit, and glue together on top of the plans.

I think, based on a lot of posts here and from talking to people at the club, the four star should be a good first kit if you don't want to build a trainer. I think people who have built a lot sometimes forget how intimidating it is to open that box and see a pile of lumber. If not for the artwork you'd never convince me a plane was hiding in all that wood.