I guess it's in vain to ask people to stop calling feeds 'RSS' when there's a better format we should all be standardising around...
It's a great example of why competition is good.
http://en.wikipedia.org/wiki/Atom_%28standard%29#Atom_compar...
but the most important, for me, is that Atom is a group effort under the IETF rather than an ad-hoc spec in one person's head. All other benefits are the result of that.