Just use Yahoo's rankings. This way you'll have all the rankings based on your league's specific categories and scoring format. I also do head to head, and the main difference is the obvious: some players are streakier than others. The other major difference is starting pitching. Facing Johann Santana once in a week is tough, but twice in one week is a killer. That's where you bring in strategy...do you pick up and drop a bunch of spot starters? Head to head leagues will often have managers with over 120 moves by the end of the year (unless you put a cap on transactions). You will want to ask your buddies about all of these rules before preparing for the draft.
Look at home and road splits...Rockies offense of course at home, pitcher vs hitter parks, Ervin Santana sucks on the road, things like this may alter your strategy during the season than if you were just doing rotisserie.
And finally, the averages and ratios...in rotisserie or total scoring, you can get buried early in the season in ERA and WHIP. But in head to head, it just starts over every week, so you can be forgiving if some of your pitchers are streaky such as Rich Hill or Zambrano. This way, you won't ever have to "punt" ratios.
Hi, I'm Troy McClure! You might remember me from such nature films as "Earwigs: Ewwww" and "Man vs. Nature: The Road to Victory."