Silver based TIMs? Odd. It's TIM. The good stuff doesn't matter what it has in it. Silver or Great Dane piles. A good paste is a good paste. Don't worry about the 'internets' oddities.
There has been good tests on TIM at many places. Here, Skinneelabs.com, xtreme forums, other places. Don't go on peoples opinions unless it was a profesional scientific test.
Good pastes have 2-3C difference at most. Buy a good paste and be done with it.
And your CPU is a hot one, with big overclocks everyone has temp issues. The H100 is decent but not magic. have you tried 4 new high RPM quality fans on the H100 yet? That might help.