I think it's great to have a centralized place where you can find answers to subjective questions; however, the current format makes it difficult to digest __why__ something is considered better than its competitors.
It would be useful to have a set list of pros and cons of each entry.
It tells you what its good for, as well as the "cons"
Edit: Also topics like: http://slant.co/topics/what-is-the-best-javascript-drawing-l... make it clear what the best use-case is for the various options. Do you want something a little more like a "comparison matrix"? Thats also in the works to help compare specs/basic features.
It would be useful to have a set list of pros and cons of each entry.