I often consider myself a bit of a purist / traditionalist about baseball, but surprisingly, I think I like them all! 1. 3-batter minimum (or end of inning) for pitchers -- I was against this since it wasn't really going to speed up the game, and it was kind of painful a few weeks ago to watch that game where the Pittsburgh reliever just couldn't find home plate. But I have to admit, it has been refreshing to never see a manager jog out to make a pitching change both before and after a single batter, even if the impact on overall time of game / pace is minimal. (And a couple LOOGY types, Caleb Thielbar and Oliver Pérez, have even looked good facing more batters!) 2. Designated Hitter in both leagues -- I have some sentimentality for the no-DH game, but it's also been nice to not see the futile attempts of pitchers hitting. 3. 7-inning doubleheaders -- With so many doubleheaders, this was an absolute necessity for 2020. But with 9-inning game times still around 3 hours, I might not mind seeing it continue into 2021 (assuming teams don't abuse it -- a team with a weaker staff might be more likely to postpone a game due to weather so they only have to throw 14 innings rather than 18? Or am I overthinking this?). 4. Runner starts on second base in extra innings -- Maybe the most controversial new rule, I didn't like the idea at all (for the majors anyway), but I'll be darned if I don't like this one too! It's exciting, it emphasizes "small ball" and defense at a time when they've been overlooked for other skills, and it just seems kind of natural that if two teams fail to produce a winner after 9 innings, they change up the rules a tiny bit. And a lot of those "epic" 14+ inning games of the past were frankly kind of boring -- a lot of 3 up, 3 down innings. At least now, if a game goes 10+, you know there was some excitement!