I've used Fanball for Football for 5 years and I've always like the features better than the Yahoo Football. This season I wanted to try it for baseball but found shockingly little info about the features anywhere on the net including in Fanballs own Commissioner Forums. (Shame on you Fanball)
For $50, I decided to take a shot so I got it. All season, I will report on my experience there. I know a lot of people hate Fanball but if it is anywhere close to their Football offering, I will be happy.
Key Features so far
$50 and comes with free stattracker like system for all teams
League pages shows all new news about just my players (Tab for the rest of MLB)
Bad Things so far
Can't have multiple commishes
limited draft times (latest saturday I could get was 3/14)
FYI - I have never used anything other than Yahoo, TSN, or Fanball so I can't compare to CBS, et al.