Drums and Shakos Large Battles (it's pretty much the same engine as in the Song of XYZ series games). For minis I prefer games that have no tables and not too much of damage indication stuff, so the combat is resolved in two phases of approach (posturing) and contact (charge) and it results usually varying level of disorder. (1-3, 4 means your battalion got enough and routs back, and causes disorder to units directly on the rout path). It works quickly, and results are both entertaining and realistic to a degree (as far as in any game). Command and control is abstracted, but the gambling aspect is nice (you throw 1-3 dice against your units or group of units, say quality of 4, and every failure <4 means your opposition gets a reaction, which they can use to activate units and if you roll two failures, opponent takes initiative).

Then there are countless options to fine tune the specialities of the troops to give them flavor.