In regards to the domains in your message post title, Kerry is winning ...
Bush.com appears to have never been utilized as a website according to Archive.org while Kerry.us redirects to Kerry's campaign website.
Between the two candidates themselves ... not really much difference ... Kerry is talking about raising taxes, but is supportive of a greatly reduced 5% corporate tax - the effect of which would greatly mitigate his various tax increases ... so even when it comes to taxes, neither candidate is really that different.
Ron