Ruth's 60.
Seriously though, they're all tainted. All those above 61 are tainted for well-known reasons. This season, it'll be the juiced ball. With Maris, it was (1) addition of two expansion teams with AA pitchers that he faced a total of 36 games; (2) additional 8 games; (3) short fence (297); (4) most important, he hit ahead of Mantle. Not that I buy into any of that (nor do I care) but that's what the Ruth fans offered. And with Ruth, it was the short fence.
If you’re going to disregard records because of steroids or whatever, then you may as well disregard Ruth’s as well, because he didn’t play against the best players, because he played in all-white baseball. Every Era has its issues.