Thanks to everybody that has responded so far, you are champions. I've quickly run some initial analysis on the data gathered and there is some interesting reading.
http://i.imgur.com/n3dSy4j.png
Crit a cola, Atomizer, the Quick Fix, Reserve Shooter and Wrangler lead most people's banning priorities list. It may be a backlash caused by exposure but it does show how divorced from community sentiment the idea of unbanning the Quick Fix is.
In this world however there'd be a very good chance items like the Buffalo Steak Sandvich, Fists of Steel, Solemn Vow, Sydney Sleeper and Guillotine would make it into a lot of games as they just don't attract a large volume of votes. That means annoyingly hard to kill heavies, but they'd also be covered in piss and getting a guillotine in the face so maybe it all balances out?
Looking at voting tendencies, Crit a Cola being such a widespread ban would be less likely to have a much of a relationship with any other unlock. However it has a fairly strong negative correlation with ban votes for the disciplinary action. Possible Soldier's union at work?
The most predictably correlated banning pair are the GRU and Fists of Steel, although the GRU are a far more commonly banned item.
Projecting the vote distributions into a game situation these are likely levels of voting in any given game (still assuming that only items on the current ban list would be targeted)
http://i.imgur.com/DhE38Ng.png
Looking at this the minimum level for accepting a ban looks to be about 6 votes against. This is also logical as with 5 "ban points" available to each user for a single item it prevents troll banning unlocks the vast majority want like gunboats. However with a standard deviation of around 7 many unlocks like the BASE Jumper, Vita Saw and Bonk! would still appear in games around a third of the time with more acceptable unlocks occasionally being banned instead. Only Crit a Cola, Atomizer and the Quick Fix would be kept out more than 95% of the time.
Early indications are that a vote ban would probably need more options available to produce a more stable meta
I'd love to get more data to give a better analysis, so if you haven't filled it in I hope this might change your mind. I might run this again with more unlocks at some point to give a broader picture of both how a pick/ban might play out and get a better overall view of unlock sentiment in the community.