If you want to go that route, take Marshall and WVU this year. WVU has 13 losses as well and 15 worse RPI. Why WVU?
If you say top 50 wins or whatever, then compare Marshall to UVA. No matter what you emphasize, you can't get around that both UVA and WVU are in and Marshall is out. http://www.cbssports.com/collegebask...rison/MRSHL/WV
According to your link, Marshall's RPI is 8 better. WVU had more wins vs the top 100, played in the #2 conference (vs #17), and a better non-conference record.