I've seen one of the Alpha trainers at the local club field... good flying plane, seems at least as sturdy as any other ARF I've seen.

For a beginner, they are doing you a favor with the special 3-blade prop... its VERY low pitch, keeping the max airspeed down and allowing the plane to slow down well for landings. 3 blade props aren't as efficient at the speed they turn on the models... but you don't need all the power the engine produces on the trainer anyway.

Any of the trainers you listed are decent. The Tiget Trainer really isn't that fragile. But if you want rugged and low cost.... look at www.spadtothebone.com find the Debonair. Its cheap and its ugly it flys very well. Not an ARF... you fold up some plasctic sign material around yardsticks to make the wing comes out about $20 (inclusing wheels and fuel tank) to build the airframe, ant these things tend to bounce rather than break when you cartwheel down the runway.

Whatever you choose... get help. A new plane s never trimmed to fly straight. If the plane doesn't want to fly straight and you don't know hoe to fly, you are asking for the thing to crash. 3 or 4 flights with instruction can save you a dozen airplanes trying to learn on your own.