About quality: evaluate Javascript code and performance

[DeeZ]

Hi,

I know these tools to evaluate quality/performance of JS develoment:
- YSlow (http://developer.yahoo.com/yslow/)
- JSLint (hhttp://jslint.com)
- JavascriptLint (http://www.javascriptlint.com/)

I search others tools (free or not) since I wanted to have also:
- a ratio between comments vs code
- lines numbers by object, by methods
- complexity evaluation of each methods
Or any others way to check/evaluate the quality of JS code.

Anyone here having experience on this subject ?

Thx.
DeeZ.