I use both Opera, Safari and Firefox on a regular basis.
Opera is the fastest, Safari is the best integrated and Firefox has Adblock. They all win on different areas, but Safari is still my primary browser.
You speak pure wisdom. Having done web development and as a web browser user, there is not a single browser that I haven't cursed. Overall the webkit based ones are the ones I like the most (or dislike less...).
Just installed it and I'm still getting three copies of the Google Chrome ad on this page... Would probably seem more ironic if I wasn't pissed it didn't work.