Choosing a language is highly subjective to the people you have available and the application you are building. Discounting php developers off hand is foolish.

Choosing a language is highly subjective to the people you have available and the application you are building. Discounting php developers off hand is foolish. Many huge sites are built in php such as facebook and last.fm There's a well known path to scaling PHP, whilst big Rails sites such as Twitter are having to build it as they go. I'm working for a startup who are building on C# and asp.net. This is hugely to our advantage as our customers are large enterprises. Microsoft is on the approved vendors list, Rails, Django and others are not.