Wargame Mechanics gripes or favorites?

Hello all!

I am hoping to collect some opinions for a project. In wargame design there are many mechanics to pull from and am hoping to hear peoples opinions on anything in the space that particularly you or stands out as a fun system.

Some examples for myself:

• Custom dice. not as fun when I have to track down and make sure I have enough for whatever game im using. and normally the dice serve to restrict probabilities than offer new ones.

• Fiddly bookkeeping and massive wound pools. Masses of tokens arent my favorite, and some wargames can get silly when tracking a unit with 20+ wounds.

As far as what ive enjoyed:

• I really dont know where else ive seen it but Trench Crusades blood dice system is very elegant, makes for great crunchy decisions it what is a very soft ruleset.

Please do share your opinions! I am hoping to publish a platest soon for a Skirmish game that I have been working on for sometime now, but not here to advertise anything just yet :).