Any of those'd be fine first planes. If they've got a Midwest Aerostar, have a look at it as well.

I think PCM's greatest utility is it's ability to reject electrical noise. That's not such a problem with glow engines, but it can be with gasoline engines. PCM also has a faster frame rate, which is useful with very, very high speed servos used on helicopter tailrotors. Some of them require PCM. For my .40 size sport planes and my .30 helicopter, PCM would be expensive overkill. I'd rather spend it on other overkill items, like digital servos.