Can anyone tell me if it is better for link popularity (& pr) to have an IP for all domains hosted on a virtual server:
123.456.123.456 = www.abc.com
123.456.123.456 = www.def.com
or different IP's on the same virtual server like this:
123.456.568.697 = www.abc.com
123.456.645.324 = www.def.com