Good post. My only concern is the value of a nd victory. Some guys literally just fought to survive the last few rounds so it isn't always indicative of how a proper fight plays out between the two men. I tend to credit the winner for giving it his all, but I don't hold a loss against the loser because in reality they didn't actually lose.
I'm going with my instinct from the earlier post. Levinsky-Gibbons-Greb-Tunney and then once Tunney moves up, we go back to the lineage.