vagabundo
Adventurer
What basis? Eladrin is a made-up word, and "warlord" doesn't mean what WOTC wants it to mean. "Tactician guy who gives orders" is a military trope, no Conan or Merlin would put up with such an upstart. Neither deserves core D&D status, and yet, there they are.
Does every adventuring party with a warlord in it become Bad Company? A bunch of mercenaries with a leader shouting orders? I don't dig that. I think that's bad design.
Eladrin are high elves and probably not called High Elves for IP reasons, still you can easily reskin them as high elves in your campaign. It is just a name.
But I think your being unfair to the Warlord, I understand that you don't like the class concept, but it is a valid one. Warlord characters can have as much personality as any other class in DND, they do not all have to be hard-boiled drill sergeants. The warlord doesn't even have to be a tradition leader or spokesman. There are a few ways you can interpret how their powers work, let the players loose with thier imaginations and they will have fun with the Warlord class I'm sure.
To be honest Warlords are one of my least favourite classes, I'm not sure how popular they will be in the DND community, but they are a valid archetype and interesting in their own right. I dig how it is now possible to have an all martial party and it is something I am going to put together - a low low magic world.