Okay, to elaborate...
My proposal is a single elimination tournament, with teams seeded in a conventional 1-16 format using the rankings from the voting.
Prior to the start of play, each of us posts our rosters indicating a single season we are are using for each player. Longevity is not an issue for this phase...this is to settle the "what if" question. Which squad comes out on top if these guys are actually faced each other on the court?
There's a gameplan day before each round. GMs are free to (and strongly encouraged to) post their strategy. How do you see the matchups working? How (if at all) are you adjusting to the opponent? What do you believe are your team's strengths, and how can your your players realistically counter the opponents' strengths? Are you running, freezing, pressing, pounding inside? These don't have to be long, but even a short paragraph or a few bullet points will give voters something to consider.
On game days, everyone votes in the same thread. You can just leave it at "A beats B, and X beats Y," but it's preferable to give some reasoning (B has no chance at stopping A's penetration, and X will get to the line 50 times). By first thing the next morning, I'll count the votes (although voting will be transparent) and gameplanning will immediately begin for the next round.
We could try to agree on some criteria for voting, although I think part of the excruciating fun of this kind of mock draft is the fact that we bring different perspectives and assumptions to the evaluation. Do you dock players from earlier eras for shooting less efficiently than some of their modern counterparts, or do you assume that the greats will still be great and will find a way to hold their own? The debates are half the fun.
Happy to consider changes to this, but there's a suggestion to get us started. I say if at least 10 out of 16 are in, we should run it. What do you all think?