OK a bit of background, I have been playing ancients since 1971 currently I favour 28mm figures but I also game with 10mm and 6mm figures.
I have tried Impetus and would not play it again, the reason is that it is horribly luck dependant and so that does not cut it for me. Chance yes, has to be there but frequent extreme chances, no thanks.
Hail Caesar, got it but not played it. No not really for me.
DBM, DBA, DBMM all worth a look at. DBA a very short simple game with strange army lists. DBM was the big boy version but got stranger as the new versions came out and similar comment about DBMM.
Field of Glory, popular commercial set, lots of army lists. I think it is over-complex for what it does. Very like Warmaster Ancients but with lots of extra (and IMHO useless) stuff added. I really hate the Points of Advantage system where you compare various tactical advantages to see who has the advantage but often find out that both sides balance out. See other peoples comments;http://theminiaturespage.com/boards/msg.mv?id=224313
Warmaster Ancients, what I am playing now in 10mm and 6mm. Sadly out of print so you are looking at getting a copy second hand. Typically GW lots if dice and since Rick did the rules, you have to pass a leadership test to move (unless they get really close in which case you can make Initiative moves, saves you from really awful dice).
Why I like it herehttp://3vwargames.blogspot.co.uk/2012/0 ... ients.html
Battle report herehttp://3vwargames.blogspot.co.uk/2011/0 ... attle.html
And perhaps not really relevant but I am working on a revamp of my own ancient rules the Die Is Cast, game report herehttp://3vwargames.blogspot.co.uk/2012/0 ... rules.html