Another thing you have to look at emp is the longevity factor. Mailman will be a big producer for an owner for pretty much as long as this league lasts. He has many, many great seasons offensively, provides solid boards and for the most part, has a good defensive rating (uncapped league = defense somewhat important).
Russell could be considered early because of his poor efg% but I don't think so. Unlike certain other guys who are better sim rebounders, Russell doesn't take 5 years to get going. He'll be doing it from the first season on.
Shaq is going to be amazing. Only issue with him is after his third season, he has 3 years where he got hurt/plays limited minutes. Then he becomes a real monster (again). He's got longevity and super production (and was who I really wanted to build around, but couldn't pass on MJ).
I hate Sly. Another progressive league that I'll have to watch my favorite player play for someone else.