I don't think that Entente is a particularly good game anyway. It bought it because I've always fancied a WW1 stratergy game, but was bitterly disapointed by the anoying gameplay and difficulty in controling troops. I would also have appreciated some trenches, as it is a WW1 game
As for Empire Earth, it is quite fun for a while, but it's almost identical to all the other Age of Empires spin-offs out there (and there do seem to be an awful lot of them). Once you've played one, you've played them all.