The difference between a Mac loading a page in .5 seconds and a PC loading one in .1 second is utterly irrelevant to me. There is no new Mac sold today that is so slow at displaying even the most complex web pages that I should care. This is the true issue about some benchmarks used as marketing. PC companies, magazines and users get so caught up in the stupid and inane measurements that they miss the important points of computers. Every test I tried in i-bench measurements were irrelevant to my usage.
Engineering is about tradeoffs.
The significant facts about which platform offers the better user experience were all dodged. I do so on the Mac. I can do things that are significant to me. I can navigate that window and save or open URL's using spring-loaded folders. I use Sherlock to do Internet finds all the time.