Some excellent HTML5 games in this top 30 (casualgirlgamer.com)

From that list I collected some javascript-based game and physics engines used in those games.

Akhihabara - http://www.kesiev.com/akihabara/

Diggy - http://github.com/lostdecade/diggy

Three.js - http://github.com/mrdoob/three.js

Game query was used in at least on of those games. http://gamequery.onaluf.org/

After checking a few of them, I came to the conclusion that Flash has nothing to fear for the time being

Shameful self-plug :)

I would like to think Last Man Standing was excellent :)

http://dl.dropbox.com/u/165110/lastmanstanding/index.html