As the title suggests, Mac or Windows? I am going to say windows (Only because i haven't used a mac, i'm sure if i had my option would change)
Because the Web was invented on a Mac... well, NextStep, the company Steve Jobs founded when he got turfed out of Apple. Apple brought him back and NextStep came with him (or vica versa)... it's now called OS X.
Mac isn't the best solution when it comes to games and here's why: http://img.moronail.net/img/6/7/3067.jpg Parallels Desktop for Mac can somewhat help you with that. Anyway, I've never seen a Mac in real life or even worked on it, but I think it has amazing and revolutionary design and it's really great for all sorts of multimedia, but I don't know if Mac supports all the programs that I'm used to on Windows. I'm guessing that I'm just a Windows guy and my vote goes to Windows.
I don't know why, but if I had to choose either a Macbook or something like a dell, i would choose the dell (if i was choosing just on the looks) I just prefer the chunky laptops, I think macbooks look very flimsy (I know their not), I am just so used to windows, I don't think i will ever change.
Because of cost I prefer windows - the guts of both platforms are remarkably similar. Both PC's and MAC's use Intel processors - although some PCs can be configured with AMD processors. Both products have memory, hard drives & graphics cards from the same suppliers - so it's mainly a matter of preference on the style and the applications!