But lemme' begin by saying I hate the Niners.... that's fact.
However, I never saw the big rivalry with the Niners that others did. First... I don't live in LA or SF or close to either.. so I have no affiliation with the 'geographic' rivalry... that meant nothing to me.
Now late things have changed somewhat... but for most of my Ram fan years the Rams and Niners played VERY few meaningful game, true 'do or die' games I mean. Mostly either the Rams were up and the Niners were down or vice versa. There's a couple of exceptions but not many.
Hence.. the Vikes, Cowboys, I always perceived as bigger rivals.
Now as for lately - yes, that has changed... at least somewhat. I still consider the Vikes and Cowboys every bit the enemy as I do the Niners but no doubt with recent battles for division title the Niners, and Hawks, are far more on my mind than the Vikes or Cowboys. - JamesJM