Just started making a game in Phaser and so far I find it very nice. Before that I used MonkeyX and before that Impactjs: Phaser feels better supported so far.

I may have briefly visited the site a while back, but I haven't looked at it too closely. I'll check it out more later. Thanks for the suggestion.

used this in two hackathons, it was relatively easy to learn and has a pretty big set of functionalities built in such as physics, collision etc. It helped us through two fairly successful game jams, would recommend.