RE: DA-50 needs a IMAC plane!!!!!!!
If you are learning I would suggest an ARF rather than a kit unles you really enjoy building. THere are so many ARFs now in the 80" range... The building process gets you too attatched to a bird to feel free to put it at risk. All of the listed birds are good. If you want to push the 3D side I would suggest the Kankge Hurricane. It is very forgiving, very similar to the 29% Aeroworks Edge. It is light, forgiving and easy to repair. The DA50 will snap roll it through the clouds. Great match for 3D.
If you are wanting to lean more to the IMAC side then look at the Extras or AeroTechs Velox. They fly very clean but they do not "Lock in" like in 3D like the Edge (The Huricane is a laser fuse with the Edge Wing)
Bean