I am agreeing with you in a "no shit" way when you 'theorize' that not all eras are identical. I am disagreeing with you on the aspect that its pointless to discuss "greatest ever". You have to look at how the teams dominated their eras, under those specific rules, with those specific parameters. That's the interesting part of the "greatest" discussion. To simply say "its pointless to compare pre-1969 to present day baseball" seems like the intellectually lazy approach. Perfect for this board, but probably not so good in a general sense.
Well not sure why you're being a dick about it but I basically said the same thing you did. My point was it's pointless to say x team has y amount of hall of famers so they are the best. With 16 teams in the league at 25 players a pop that meant there's 400 players in the league during that era. Today there's 750 players in the league. The chance that any one player is a HoF player is quite a bit smaller.
As I said before, if you want to compare era's run differential largely covers the differing circumstances on a team perspective and would have been a far better argument for Ommy to make. As for being intellectually lazy, I don't agree. If you're not playing the game by the same rules you're not comparing similar things. Pre-FA years are entirely different with regard to keeping a team together. Pre-latin explosion and black integration meant that a few great players could carry a team. It also meant there were a lot more shitty players in the league. Just look at the list of triple crown winners. There's been 10 in AL history 1901 Nap Lajoie, 1909 Ty Cobb, 1933 Jimmie Foxx, 1934 Lou Gehrig, 1942 Ted Williams, 1947 Ted Williams, 1956 Mickey Mantle, 1966 Frank Robinson, 1967 Carl Yastrzemski, and 2012 Miguel Cabrera. In NL history there's been 6 with 1878 Paul Hines, 1894 Hugh Duffy, 1922 Rogers Hornsby, 1925 Rogers Hornsby, 1933 Chuck Klein, and 1937 Joe Medwick. Is it any coincidence that out of the 16 triple crown winners 11 came before the integration of blacks(12 if you count 47 with Williams since only a handful were in) and another 3 came before the expansions in 1969?
Ultimately, all of these things have made the game much flatter in terms of overall talent. In the Pre-47 era you could feasibly have 6 of the top 20 hitters like that 39 team did and if you found good players they weren't going anywhere. The 2016 cubs are the best team in the league by a country mile and they only have 3 hitters in the top 20. So I fail to see the point in comparing the two. I get you're suggesting looking at the teams vs the teams they played but as I've said, the overall talent level is flatter. It's a lot harder to dominate when that's the case. In 1939, the Browns were -293 run diff. The A's were -304. Last year the worst team in the league overall(not just AL) was -183 and played 10 more games. The Yankees played each of those two teams 22 times. Against those two teams, the yankees were +196 runs. They were +411 overall meaning the other games 108 games they were +215. The most any team plays any other team now is 19 games.
If you want to debate this then by all means have at it. I just think the game is far to different to compare.