EMY works as it should. Is it as dynamic as it should be, no, it needs a few tweaks.
ENY is there to slow a team down that has the advantage of numbers. Right now bish have 13 tower, 10 air, 12.8 ENY. Knights 5 tower, 4 air. Rooks 6 tower 2 air. Giving free 262s to the knights or rooks isnt going to really help slow down the Bish. Adding a perk to more planes for the bish isnt going to slow them down either as most players playing these days have thousands of perks.
Having a large group that has to fly slow planes, or planes that cant carry as much ord IS going to slow the bish (or which ever team is under ENY) down, so ENY is working as it should.
From a players point of view, sure it sucks to have to fly crap planes, but that is the penalty you pay being on the team with the most players, by a good margin. 6 F4Fs vs 2 Chogs could be a fun fight. People have to stop looking at this as a negative. The challenge is what the game is really about. To many people want the easy way, that isnt the point of a game, any game for that matter.
The only tweak Id do is to add a timer to cut out those players that sit in the tower for more than 10 minutes or so from the ENY calculation.
I think the biggest problem with ENY is that it is supposed to promote even sides, but the 6 hour side switch timer does not allow for that. The auto-switch feature is fine but can be frustrating when there's actually a good fight going on and you get yoinked elsewhere.
It was NEVER designed for this. As I said above the purpose was to slow the team with the numbers advantage giving the lower populated teams a more even footing by having better equipment.
A side advantage was that it COULD help even numbers but that isnt why it was setup.
The idea of a "free to play" group of planes/vehicles has been put forth many times over the years. Hitech said he didnt want to do it, but that was years ago.