As I was checking out some animation blogs (animation being my non-baseball obsession), I came across some great baseball nuggets out of either Mad Magazine or Mad Comic Books.
It's not quite clear from the text, but these appear to be from 1955 or slightly earlier (the collection they're pulled from here came out in 1958).
Check out these awesome Mad Mag images that prove the debates we're engaged in aren't anything like new:
First, the post I found them on. (You'll have to scroll a little more than halfway down the page).
A couple prime examples:
Please check out the others, they're awesome (please forgive the very non-PC depiction of the minor leagues in the very last panel). I'm beginning to think people like baseball simply because they like arguing.