RE: Park Flyer Spitfire - which is best?
The World Models Spit you mention is a great flier, and easy build, but not very scale. The Flying Styro kit is very scale, and does fly well. A bit trickier to build, and definitely not cheap for a foam plane. Alfa does not yet have a Spit. The new Parkzone Spit is getting good reviews, might be worth having a look at. Another one is the Hyperion model. Looks pretty nice to me.