Recently I've been less than impressed with NS's product. IE seems to load faster and render this quicker and more accurately.
However, IE 5.5(WIN) was a kick in the side. It was much slower than previous releases. Also, MS seems determined to mess around with standards. If they don't use W3C standards, the life of a web designer is going to be complete hell (even more than it is now).
I've seen NS 6, and I'm fairly pleased with it. Although the default skin is ugly, it ca be changed. Looks don't necessarily mean the product works great. NS 6's new rendering engine Gecko seems to work really great tho (fully compliant with W3C standards too!)
for more info on gecko and why IE5.5 (WIN) is EVIL check out:
http://www.alistapart.com/stories/gecko/index.html and
http://www.webstandards.org/ -MC_Mouse
