The Macs are definitely very well put together - I should know I have spent a ton of money supporting the AAPL share price in my life. However, when running on Bootcamp similar hardware will give the same performance. Mind you, I have a Hackintosh that would probably beat the newest Mac Pros at everything other than video editing and hard drive speed. Top-end desktop chips are faster than Xeons (especially when overclocked and liquid-cooled) and I have used a top-end GPU when I built my own Hackintosh.
For an out of the box solution, the Macbooks are much better than most notebooks out there because they are well designed, tend to run reasonable hardware and have no bloatware (biggest issue IMO). However, when I ordered my new notebook, I used a company in the Netherlands that builds custom notebooks. I have a CPU that perhaps only the fastest Macbook Pros had at the time, custom cooling and only the items I judged important.
All of that being said, the Macbook Pros are very tempting and the wife will probably get one when her next upgrade is due - depends on how well she behaves herself.
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