That rivalry didn't last long Raymond. A year after the Red, White and Blue Sea Pedestrians won their last premiership for 27 years, Manly-Warringah won its third title, then another (and that was after Fulton had defected), then another one in 1987 (when they defeated the Goosters in the major semi), then another in 1996 (when you guessed it, we beat the Roosters in another semi) then two more post 2002. That of course was when your Club won its last title before eventualy settling back into its standard mediocrity, including its fifth wooden spoon, just for 'old times' sake.
Any success the Roosters enjoy is invariably short-term. You're the Bulldogs of the East. World beaters one year, cellar dwellers the next. What's the betting this current coach will be gone in about two years because Uncle Nick will not be satisfied, without another title, before he shuffles off? Do you remember Chris Anderson's last game as Roosters coach? We all do.
In summary, Manly's record since joining the competition in 1947 is so superior to your Club's, (8 premierships vs 3, no wooden spoons vs your 5 over the same timeframe) with its penny-packet junior league (the Chooks should have merged with the Rabbits - that other white meat - years ago), that I really can't understand why any Roosters fan, with any self-awareness, would go onto another club's site to brag. Especially when your Club's record versus Manly's is well, so mediocre. Wow, 40 wins over Manly to our 79 over the Roosters. Awesome stuff.
Give our regards to the Stehr family - who played a significant role via (the real) Ray and Arnold, in the early history of our Club. That could explain your presence here - it's a Freudian one.