FF Newest Beta vs IE8 vs Safari Latest Beta...

Which browser is the fastest on a Vista Home Premium system (64 bit)

I am currently using Safari 4.X beta... It is super fast, and it seems MUCH faster than IE8. But some people say Mozilla... I did the Acid 3 test, Safari = 100!, IE8 = FAIL(Lol...)
And mozilla= No idea, my laptop ran out of battery when i tried it ^^

But anyone know a good way to test the browsers

-or-

A way to make Safari 4 faster than it already is? Someone said to download something else and let that program run scripts/something techy instead of Safari... --> Make Safari Run Lightning Fast

But any help would be appreciated..
Thanks
DD

Firefox with the following tweaks:

TweakGuides.com - Firefox Tweak Guide
  8 Easy Firefox Tweaks for Super Fast Web Browsing by mad WAHM

I also use Safari 4 Beta (but Firefox is default browser still), love it from the day 1, especially those "top tabs", many criticize this, but it works for me. Like you said 100/100 Acid3 score (Firefox 3.5b4 scored 93/100). My only gripe is PDF files tend to crash Safari (after all it's still Beta 1), and I have noticed quite CPU consumption (10-15% more) comparing to Firefox, which is kind of letdown especially if you have laptop. But I guess this will be ironed in next Beta or RC. Firefox has some kick a$$ extensions, but I can live without them.

As for the "tuneup/speedup" I would rather wait final version before I play around with some "utilities". Just for the record in synthetic tests Safari 4 Beta is THE fastest browser:
Apple Safari 4 beta raises the bar for speed, compliance | Software News - Betanews
Safari 4 benchmarked: 42x faster than IE 7, 3.5x faster than Firefox 3 - Crave at CNET UK

Cheers,
Miki