Sharp Practice or Blackpowder ?

[WillieB]

If you already have relatively big armies painted up you could try Black Powder. It's no use playing it with say 1 or 2 regiments a side, as the sometimes rather 'wild' results can easily throw your entire army  off the table. Lacks a bit of flavour IMHO but still popular.

Sharp Practice is a superb system,  but as several people already said limited to say 100- 150 figures each side.