Is there any difference beteeen superpowers?

[Wintermute]

Or is it only about flavor? Do they support/dislike different edicts and buildings like parties do?

I accidently allied with germans (you know, happens), and now I wonder if there's anything different on America's side of things.

[captainpatch]

The most noticeable difference that I've seen is that when they give Foreign Aid -- NOT when you formally ask for Foreign Aid -- or Disaster Relief, the Allies/Western Powers are somewhat more generous than the Axis/Eastern Powers.

The biggest difference actually comes at the end of the World Wars and the Cold War Eras. You get different explanations of how the era ended from the Ambassador that you had allied with. (Kind of embarrassing having allied with that era's loser.)

[Hannah Montana]

Buildings or edicts do not influence your standing with any of the foreign powers. Only if you get a specific popup task/request, then it does. Constructing a building or enacting an edict on your own will not influence your standing.

What influences standings among powers is embassy actions like praise, send delegation, ask for foreign aid and trades routes and popup tasks/requests.

Actually I forgot about the Diplomatic Super Party Edict. That one specific edict does influence standing.

Generally speaking there is no difference in terms of aid or what trade routes are available with the different powers. Only in one mission are there mission specific preferences between the powers.