It's funny that you noted you used netscape in the late 90's and it was more of a WYSIWYG interface, because i am reading a book about globalization and how the world was "flattened" called The World is Flat by Thomas Friedman and it notes in his opinion the 10 things that flattened the world and i believe the second one was the creation of Netscape. Netscape was pretty much the first interface that was widely accepted and created the internet accessibility for the every day average joe.
But yea, when i first got my mbp a couple months ago, i decided to try out Safari. I too had been an early user of firefox, i wanna say around 2005, which was when is started really using computers and getting more into them. I just like the feel of it, and my school of thought is that if it's not broken don't fix it. So no matter what i try i, like you, always gravitate back to firefox. 😛