Use Elrond and Gil-galad to lead your High Elves, use Durin to lead a warband of Khazad Guards and use Elendil to lead a warband of Numenoreans. The Numenoreans are there only to give some more numbers and to give Elendil someone to lead. It would be an extremely expensive army, but a very powerful one. Use Gil-galad in tandem with Elendil. Gil-galad kills the thing you're fighting while Elendil calls a heroic fight. That should give around 2-3 dead guys a turn, more if you get them into fights with multiple opponents which would increase the number by quite a bit.
I was thinking about doing this because I'm getting Elrond and Gil-gald tomorrow along with two sets of. 24 pack of warriors of last alliance and I also have ordered Elendil