Hmmmm well here's my experience using a RoF at a Storm demo day plus my experiences using both the Ogre Particle and the AMB Centaur Particle. I can't compare to the MegaFriction as I've never thrown one but have the other three that I mentioned.
AMB Centaur Particle handles most oil at OOB but it almost unusable unless on a flood. You need to take it to P2000 and up to be able to use it on what I'd term heavy oil.
Ogre Particle good heavy oil ball to heavy-medium not as much flare as the RoF but there could be a direct comparison between them both for heavy oil.
If, I had a choice I'd take the RoF for heavier and I am a Visionary user. The RoF surprised me and was able to be used at practice on a Natl's practice lane condition. The RoF did very well on it's ability to keep the ball in the pocket more so than I'd say the others would. This is just my experience. Layouts were similar and OOB surfaces.
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Scott