We find DBR is actually pretty good for large battles (using the 'condensed' scale).
Field of Glory: Renaissance is very good - better than the ancients set, and works well for ECW.
'To Defy a King' works quite well - particularly the orders system, but the combat can get a bit fiddly.
'For King and Parliament' is an ECW version of 'To the Strongest' which we've been trying in its playtest version and that is pretty good