- Symfony vs. 842 questions tagged symfony* at StackOverflow
- cocos2d vs. 342 questions tagged cocos2d at SO and 1 question (yay!) at GameDev Beta
- Maven vs. 2k questions tagged maven* at SO
to name three recent ones... shall we just give them their chance or close as dupes?
Feature-request: for new proposals do an automatic search for related tags at SOFU showing the current question count.