I have concentrated on leagues with real-life players. I enjoy different settings/challenges so I have 4 leagues in progress:
[*]A league starting in 1901 that uses the random introduction feature. I am currently at the beginning of 1918 in this league. I enjoy seeing how players might perform in different eras and vs different opponents. I am (so far) hands-off with this league, generally following a team from each league through a season, "watching" a couple of games per league week, and tracking favorite players/leaders/standings throughout the year. Otherwise I would not have time to advance rapidly enough and still play other scenarios. Additionaly, I rather like the fact that no human interference is involved in how these random histories are evolving. Here is a link to the league's history:
http://www.ootpdevelopments.com/boar...ns-1901-a.html
[*]An Historical Pennant Race League. I GM/Manage a contender using real-life transactions/lineups. I just completed the 1959 season with the Dodgers and I was terrible, scoring a 0, so my work in this type of league needs must improvement. I have just started 1948, managing the 1948 Indians from my boyhood state of Ohio. My pace is ~ 1 season of this league for every 8 of the random introduction league
[*]My Willie Mays League. This is an historical league, starting in 1951, currently in March of 1954. The idea here is to manage my favorite palyer throughout his entire career - Willie Mays. I GM/manage Willie's Giants. In 1953, Willie was great, and the Giants led down to the 9th in Game 7 of the World Series but lost. Unlike my previous league, I scored 106 of 100, an OOTP God in this league for 1953. I have just increased trading from Average to Hard. I play ~ 1 1/2 seasons of this league for every season of the previous league.
[*]A 2013 MLB league, GM/managing the New York Yankees. I play this one as closely as I can by calendar day, i.e., I play the 4/24 game on 4/24. I chose the Yankees to see if I can outperform the real-life Yankees, particularly with the injury challenge they have this season. So far, so good.
From a game play point of view, the 3 leagues I actively manage, I am only involved at the Major League Level. I am usually involved in each game, often using the "play until RISP" feature depending on the situation. I will allow the AI to play to the end in runaway situations in either case.
I enjoy each challenge because they are different, and switching back and forth helps me not get in a rut with any one format.