I used to love Apple computers, but the new Mac Book Pros are absolutely NOT customizable at all from what i've heard, and to make matters worst, when anything dies, you have to send the whole machine in to get fixed...
They have basically glued everything down to the machine to make it thinner etc, so now the battery you can't even access, the Ram is glued to the mother board or something along those lines so you can't even upgrade that if you need to... even the screen is now glued to the body... so basically if anything goes wrong you need to send in your whole computer...
So with that being said, honestly, now i would much rather go back to a PC for a laptop, and for desktops, i've always stuck with PC's due to the fact you can upgrade and manage things a lot more easily imo...