So I have been developing website for about a 1 1/2 years using asp.net and a friend asked me today why I chose to use .net instead of php. My simple answer was it was available to me, and I am comfortable with Microsoft. That got me thinking, I should probably learn a little more about php so the next time someone asks I can have an intelligent answer.

Does anyone have or know where I can find a good comparison (non-bias) on the two asp.net and php?