The GWS Beaver is a good first ARF. Good plane to learn landings and take offs with, fairly robust design, good stable flyer, and an easy build. It's a good value at around $40 with a motor.

The GWS E-Starter is a good one if you want ot move right to 4 channel, BUT it fly's better with a 350C motor than the 400 motor it now comes with. So you are best off to order a slope glider kit - no motor - and get the motor seperately.

The Formosa is the next step up in line, but only if you really can fly the Stryer VERY well.

Over all I would recommend the Beaver. Even though it is an easier plane to fly, you need to develop some building skill to get any of them to fly well. A good stable flyer will give you a bit more margin of error in the building process and still yield a flyable plane. The more advanced planes won't tolerate much error in the build and still fly well.