Which do you prefer, and why?
For years in the DC area pretty much the only game in town was leagues, where you commit to 10-week seasons at a certain location. There might be a couple of tournaments a year, maybe not.
In the last year or two, coinciding with a large uptick in locations, there has been a huge growth of knockout tournaments, typically weekly, sometimes monthly or more occasional. You can play in a knockout tournament 5 days a week if you’re willing to drive a bit. The advantages of these are that there’s no commitment beyond any given night you can attend, and you get instant results/gratification. At the same time, you tend to see the same core of people at most weeklies, so you don’t lose the social aspect.