>The final two rounds of the tournament will be at a neutral site for countries with less than four divisions. For countries with >four or more divisions, the final three rounds will be at a neutral site, and for countries with six divisioins, the final four rounds >will be at a neutral site.
other than these, if u are playing home, u really are playing home
some survey suggest that there is a 2-3 point difference for HCA. I would say its easier to keep the flow of making a run.