I went through the same thing last year.My startup went with python/django over php/codeIgniter. I think the top two selling points of the python/django solutio

I went through the same thing last year.My startup went with python/django over php/codeIgniter. I think the top two selling points of the python/django solution were the quick-to-prototype (tones of apps) and the cool factor. My boss was worried about attracting hackers, so the cool factor was important to him. The development benefits of django apps were nice, features were implemented faster, but at times it was frustrating to customize. The other big benefit was south - a django app for managing data and schema migrations. In our php solution we had to manually write sql scripts. All that being said, I agree with everyone else, the most important thing is to make the developer comfortable.