I am not against it (expecially against the Zune Update) and if you find a wizard we would all hail you but i do not believe it.
If there would be really a ambient port it would be possible to have both as option and configured. As long as this not happens I look at the reality and try to get the best that is possible. Besides "Ambient" is MorphOS and thus as alien to Aros as Magellan. The only real "Aros" option would be a heavily updated Wanderer but there I have not much hope. Even if there is a updated Wanderer somewhere, as long as it is not official it is not existing. When something new is real I would look on it and there is no reason not to support it.
Besides Magellan versus Ambient, the basic functions (file types...) are the same or at least similar. Ambient is (how I understand it) a configured environment (what is also possible with Magellan). The other difference is that it is based on MUI4, if that is a advantage or not is a matter of taste. Magellan has a lot of options for configuration too.
Ambient uses MUI/ZUNE, Magellan does not.
A port of Ambeint improves the whole of AROS and gives access to even more software in the long run, a port of Magellan just gives a a nicer desktop to those that want it in the short term.
Both nice things to have, but I know which end result I prefer.
Which is the whole point of my original statement.