Well, I'd prefer the Chicago one to be a faster revive (30 seconds) server, with relatively simple maps (Shock - Kalcastle - I can list more later if you decide to listen to me)... and obviously no guntemp. No maps where you have to pick up anything.
When people run Pubs like that, (Superman's / SeXy's etc..) they draw the most attention from new players, and they are usually more fun then a regular pub. Most of the American pubs get empty fast because of bad map rotations. A pub does not need to be 60s revive, just like in most games, Pub's spawn faster then Matches. (Although, no-revive in matches would probably be better anyways) --- But that's besides the point ----> Faster revive, simple maps, is what draws attention from new players, and when a pub has attention and always has people in it, older players actually pub.
Euro ones you can try different stuff probably, since OTB does have a good, active Speed server, as well as a Public server that have good maps, revives etc... So they are probably more available for putting older maps and stuff, but keep in mind, old maps wont draw much attention, finding ammo isn't enjoyable in a pub, and confusing maps aren't either (which is why a lot of ice maps or larger matchmaps shouldn't be in pubs).
