I'm still on FM 12! For two reasons:
1) imo it was the last 'great' game of the series, which still has things like sliders for tactics that you can adjust one-by-one and really micromanage. And although it has a lot of pointless crap that wastes time (press conferences etc.) there's less of it than in the recent titles.
2) I've got a long term save going, reached all the way to 2024 having started in 2011. The goal of the save is to win the World Cup with a team from each continent, as well as in the meantime creating an unstoppable powerhouse in European club football. The second part is done, I've won 10 Champions Leagues in a row
but the first mission is seriously difficult. In three attempts I've only won one World Cup, with Ghana in 2018
I'm not ready to move on from this save until I win the World Cup with five teams from five continents. Now it's taken me like 3 irl years to play through 13 years in-game, so theoretically the best I can do is about 4-5 irl years from now if I win four consecutive World Cups (unlikely). So it'll probably be past 2030 IRL by the time I'm done with this save