With all those designer lists, when I look at mine (geekgroup is awesome, been using it for a while), I really wish that BGG had franchise as a data field to group multiple instances of basically the same game together. No I do not want all 3 of the Zombicide designers topping my lists because I own 4 different standalone games that have the same gameplay (or even slightly modified replacement). It would also solve the Top 100 issues if you would only allow one game to represent a given Franchise.
All the different Pandemics are a bit more difficult but even so I would rather have them grouped together. Also one could offer a game and franchise view of the Top 100 so people can decide what they prefer.
There must be something wrong with my idea because it is not so farfetched and they kind of already do the Family of games… but that is too broad I think.
The designers at the top top of my list are Knizia with 10 and Rosenberg with 7. my average Rosenberg rating is higher though