alanback: Leaving on top? Well yes if you define top as the top 5. But no, if you define it to be number 1. If you define it as the best overall with statistics on Brainking then probably yes..... If you define it generally then no, we don't know for sure.....
You said: "I have been in the #1 spot in most of them at one time or another in the past" The point is: If you start reminiscing the past for successes then you are already history!
Anyway it's a shame you will leave, but oh well. You know better:-) Do you intend to return someday.....?