Well, I'm not sure a Pick 'Em type game would be an entirely accurate reflection of somebody's baseball knowledge... There's definitely a large element of luck involved, too. But you're right - if somebody consistently is among the best, odds are they do know their stuff.
Yeah, if only they'd a listened...
The point about the fun of drafting and how deep into the talent pool you have to dig is well taken, too. There's nothing quite like drafting a new team.
By the way, just to get a rough idea of what a baseball Pick 'Em game might be like, check out Pick3 over on the football board. The format is fairly simple, but it's still turning out to be a lot of fun.