My biggest problem, quite frankly, is with the Eberron push.
I prefer Greyhawk; but have no overwhelming aversion to playing in the Realms. Past that, however, I'd go to third party sources like Kalamar, Scarred Lands, Arcanis, and other worlds--and then probably give up D&D altogether--before playing in Eberron.
I read the initial setting book, didn't like it, and didn't buy it. As far as I'm concerned, it's garbage, plain and simple.
Keep your steampunk and 'magic-punk' overtones OUT of my straightforward fantasy, if you please. No flying ships (I'm looking at you, too, Forgotten Realms 'Shining South'), no pseudo-robot machine men (I don't even use Iron Golems), etc., etc. In fact, even Greyhawk is too 'magic-y' for my taste. Grrrrrrrrrrrrr.......
Regards,
Darrell