How do people feel about the following:-
Running multiple unrelated countries ?
Peter,
No. No matter how well intentioned the player, there will still be instances where they make decisions for one country for the benefit of the other.
Allowing consensus input into the running of minor countries ?
This is the way to run all non-player countries actually. Let me suggest that you look into a bidding system too. Players would use "political" points earned through the actions and/or accomplishments of their own countries to influence the consensus. When a question to vote about whether Nation X undertakes Action Y or Action Z, expending points would allow a player to vote more than once.
Allowing other players to interfere with the running of the EU by requesting country X "does this" ?
The EU is a tough call because it is neither fish nor fowl. There is no combined military, no combined foreign policy, none of the hallmarks of a true nation-state other than an external tariff barrier and the internal movement of goods and peoples. It's more of a diplomatic shell game, allowing member states to wear an EU "hat" or national "hat" as they see fit for whatever current advantage either may confer.
I'd suggest that the EU in the game be split up between the individual major states like Britain, France, Germany, or others and the remainder which would then be run as a bloc of sorts. Again, by spending political points, players running one of the EU majors could set EU policy or choose to opt of said policy decisions.
It would be a game within a game.
Treating some of the worlds larger conglomerates as minor countries in their own right ?
Most definitely, although play balancing such entities will tough as most will morph into nation states sooner or later; i.e. Mitsubishi "taking over" Japan.
As you note, conglomerates would be subject to consensus offered by those nations in which they operate, again perhaps using a political point systems.
One cautionary note, the more entities you add to the game, the more players you're going to need. My rough count of "important" nations, blocs, and conglomerates already stand at over two dozen.
Regards,
Bill