I cannot find a single browser that I can use 100% of the time. Firefox (and therefore Camino) seem to have a variety of memory leaks (any platform, not just Mac). Safari is REALLY fast, but some web pages just don’t work right. Though not really a huge number anymore. Maybe the iPhone has something to do with that.
More and more businesses are learning that Microsoft’s web building tools create non-standard web pages that use Microsoft’s proprietary HTML add-one that do things that could have been done in standard HTML code and be accessible to all code standard browsers without excluding non-MS using customers which number around 30,000,000.