In Roto with a max IP you might be nowhere near the best team.
One example sent to me by the 11th place team (out of 12) as to why he's going to finish 2nd (he's not, but that's neither here nor there) is as follows:
While someone might currently lead in the K's and Wins categories, they may be doing so by running up massive IP's that project to WAY over the limit for the year. Their K's and W's may be leading, but you really need to look at K/IP and Win/IP to see how they're most likely to end the season.
In the league I mentioned, the guy leading in K's and W's actually is near the bottom of the league in K/IP and W/IP...he's simply rotating 6 SP's in a league with a 1250IP max for the entire season. On the other hand, this 12th place team has only been regularly starting 2 SP's. He's actually in 1st in K/IP and W/IP even though he's currently in 9th and 10th in K's and W's. He's going to add 17 points IF he can keep this pace up when he adds SP's later in the season.
Now, there's a lot that can happen there...you're expecting things to stay that good when you add more SP's but that means you either have to find FA pitchers that can put up 8.5K/9 numbers while winning almost every start. That's a pipe dream. This guy's talking smack about how he's 'actually the 2nd place team' while he's in 11th. He's a schmuck. But you get the idea from what he sent to me - you CAN be in first and have it simply be an illusion in Roto with IP limits.
As for H2H - your team isn't necessarily the 'best' team because it's in first. Just like the team that takes first place in real baseball isn't necessarily the 'best' team. They're the team that won the most games that year. You don't win championships by being the best team...it just helps to be the best. You win championships by being good enough to make the playoffs and then good enough to win one more game than your opponent does in each playoff round. There's no extra points for blowing people out and no extra points for style. So in H2H, just as in regular baseball, sometimes the best team does NOT win. Just look at the 1990 Cincinnati Reds.