His 60 HR season, and his career in general are more impressive to me than any hitter in history, even with steroids included.
In 1924, he hit 46 HRs, second was 27 HRs.
In 1926, he hit 47 HRs. Second place was 21 HRs.
In 1928, he hit 54, second was 31
1921 was the biggest disparity though. He hit 59 HRs that year. Second place was 21 HRs. Of course when he hit 60 in 1927, Gehrig had 47 behind him.
There were other years in there where he didn't lead the majors and some where it was close, but those are some big disparities.
Still, we're talking about records though that won't be broken. Ruth's domination was epic, and no one will dominate the game like he did, but some of his records fell with the steroid era, and the increase of the season to 162 games. Because of the evolution of the game, the pitching records held by the 1800s and early 1900s pitchers won't be touched by any modern day pitcher, ever, unless the game evolves back the other way again at some point in the future.