I would prefer Firefox for work-related stuff. But for browsing and leisure, I would definitely go for Chrome.
Firefox is my favourite, I use it often. However, Chrome tends to work better with HTML5 :\ Chrome is great for general users - but I think Firefox is the king of browsers for web developers P.S. I hate IE.
Firefox for me but I dislike how it eats up my memory to the point that I have to keep restarting the program every 15 minutes.