In my books it boils down to what you were ‘born’ with. I have always used Fireworks as a front end web designer because I was ‘born’ with using ‘Micromedia’ products and that’s where FW once belonged.
I love my Fireworks and find using Ps a pain in the neck. But I guess if some of the top notch graphic people use Ps than Ps has to be the winner.
I use FW CS4 and I am sooooooooooooooooooooooooooooooo glad that I can open PSDs in it!!!