On the question of Start Menu vs Dock, I must admit that I simply dragged my Apps folder to the Dock and now just right-click on it for a very 'Start Menu' sort of list of applications. Works for me, and more importantly, it helps those who aren't familiar with MacOS in the office get applications running if they need to. And since I can do the same with my Docs folder, it makes it very easy to navigate around the system without really having to open anything.
On the wider issue of Macs vs PCs and which is or isn't faster or more advanced, the answer isn't anything to do with specifications and can't be all that readily explained by analogies. It's interesting to watch the task list on a fast PC, and realize that the process that runs most frequently (by far) is the 'System Idle' process - which is the process that is run when the PC hasn't got anything else to do. Personally, I can't see the need to splash out on a real fast computer that is going to spend the vast majority of it's running time doing nothing because it's waiting for it's user, or waiting for data, or waiting for the HD, or waiting for the next clock cycle, etc.
And even if these systems really did run flat out all the time, what exactly would we do with that collection of nanoseconds we'd be saving over an above a cheaper system that isn't so capable of idling around so quickly?!
High performance levels are really only significant in intensive applications - which the majority of users never really run. Hence the ramping up of processor speeds wasn't really, at least for the public, an issue of gaining access to greater power and performance to allow more sophisicated applications to work with more data, but was a way for manufacturers to market systems such that consumers could be urged to abandon otherwise perfectly acceptable equipment in favor or 'the new thing'.
So where does Apple fit into all that - after all, they've done the same thing, trying to encourage buyers to continually update their systems (otherwise their market share would be around zero by now). The answer is that Apple took a slightly different approach to power. Instead of pushing clock speeds so the system could move small lumps of data around more quickly, they pushed for systems that could move larger lumps of data around, even if not as quickly.
The advantage (in my view) of Apple's approach is that it tends to mean that system performance isn't as critically dependent on hardware components (think of a disc that spins at half the speed but allows more than twice the data to be moved in one go as a crude example), and that the user experience can be made better - even if only in an illusiory way, because what happens on the screen seems somehow rather more fluid and integrated. It also tends to allow something else: for complex data to be moved with less system demand, which many percieve as creating a far better system to work with.
To accomplish the same sort of result that a relatively 'low powered' Mac can achieve, a PC has to have more 'power'.... which brings us back to spending good money on a system that idles more!
OK, that's me done - I've going so you can shoot at me all you want!