I’m currently looking into developing Facebook applications and was planning on using Flash as the basis of my application, I have test built some simple PHP Facebook applications and I know enough about action-script 3 to start me on my way, but the API for Facebook development in AS looks far more tedious than the PHP one.
my question is would I be able to create interactive graphics (games) like we see across the web in the HTML5 canvas class? and which would be simpler?
HTML5 doesn’t truly exist yet outside of the basic support in the various browsers. We’re a couple of years off from true saturation since it won’t be until IE9 and FF4 are released and then widely adopted.
You could use the Google Code project to enable canvas support in IE however until then:
http://code.google.com/p/explorercanvas/
And yes, you would be able to create some interesting games with canvas. I do however believe in the short term you’d have a wider array of options with Flash.
http://www.canvasdemos.com/