I'm using a custom script that removes 5000 gold per turn from all AIs with a positive balance. It's quite easy to add it to the custom EB script.

This cancels out the 5000/turn bonus that the AIs get on Hard.

As a result I get rather aggressive AIs but without endless super stacks.
The AI has a lot of 3-unit stacks, but regularly attacks me with half-stacks.

I'm playing Ptolmies. Most factions are expanding slowly. The greeks are all in a stalemate. Carthage is doing very little. Rome is totally kicking arse and Selukia would be if it weren't throwing all it's units at me.

The game is maybe a bit too easy, so I might reduce the nerf to -3000 per turn. I'm seeing evidence that Selukia has upgraded it's MICs and economy though, so i't beginning to throw a few half-stacks of heavy cav/silver shields at me alongside the usual eastern mobs.

I'm also playing with huge units, which makes my vicories rather Phyrric when I have to recruit from small towns.