Mac and a PC are different things.

Mac is an entire package of hardware and software. Apple keep things very tight as to what can run on a mac and what can’t, making the OS more stable.

PC is much more open source. You can have a lot of variations in the hardware and anyone, with the knowledge, can develop a programme for windows which leads to a less stable but more varied OS.

I tend to lean towards the PC mainly because I hate the hardcore Mac community and Macs advertising campaign is just getting embarrassing. Reminds me of: