What are the main things you want to see fixed from EB1 in EB2???

[seienchin]

I find light troops on loose formation resist cav charges longer than if they are on tight formation which seems counterintuitive.

I guess because the men are further apart they take longer to be killed so their morale holds longer? Dunno.

They also resist elephants and chariots better when loose which seems right.

Maybe thats the tradeoff? Anyway as you sensibly point out cav charges in EB are rarely decisive unless the charged unit is already engaged.

I'm definitely not asking for elephant charges to be changed, I love them.

You are of course absolutly right.
Skirmisher with the skirmishing mode on often starts running in the opposite direction of the cavallery thus eliminating the charge and forcing the cavallery into melee. It is really a problem in Rome and unrealistic and very easy to exploit.