How about KPMG's sponsorship of Phil Mickelson? He's giving them great air time, especially at the US Open. None of the other firms even come close in their sponsorships. I guess Accenture with Tiger Woods, but it's been years since they were part of a public accounting firm. KPMG national and a few other lucky partners must love this sponsorship since they get to play with him a few times a year.
Blogged about my life in the Big 4 and now about life in Private Accounting