Here's what I like about Safari:
Better Mac "feel" than FF. (See pictures of buttons below.) I know there are plans to make FF more Mac-like in the future.
One word:
PithHelmet. FF has ad-blocking add-ons, but PH is much more robust. The amount of ads on the Web is absolutely sickening, so I can't live without my PH.
Tabs have their own close button. FF has one close button for all tabs.
Fast, lightweight feel.
Maximize button works better. FF shrinks to half its width when I press it.
What I like about FF:
Very "tweakable" with the about:config page.
Easy installation of plug-ins and themes.
Access to source code, which allows developers to make G4/G5 optimized versions.
Fast, but does not "feel" as light as Safari, IMO.
Has the potential to get more people than ever to dump IE.
😀