If you don't like the 'closed wall' aspect of Mac's design, just say so. No problem. It's not everything for everyone.
But to claim Mac's aren't more reliable and better built is ludicrous. There's a reason I can still sell my 3+ year old Macbook for half of what I bought it for new. I also have several 12+ year old G4's running 24/7 as servers with zero issues - this sort of longevity is rather common with Macs, it's quite rare with PCs.
I use both every day, am very familiar with both platforms and quite frankly, in my opinion, Macs are just easier to use for a majority of common uses.
Again, if you don't like Apple's philosophy, that's perfectly fine. But don't let it bias your attitude towards the products.