Love my desktop PC (Win 7) with 27” monitor. Also love my iPad.
If you’ve got $500 to spare (IMO the base model is sufficient if you have wifi at home), I don’t think you can beat the iPad Air and it’s Retina display. I hear Samsung is working on a super-res screen, but for now I think iPad wins big time.
I like OSX also, but find Apple computers too pricey for my pocketbook.
What advantage is there in having a "super-res screen" other than bragging rights, since the pixel resolution of the iPad already exceeds the capability of the human eye to resolve the pixels? All that exceeding that limit can accomplish is to require more resources than necessary to display what is required to display the required data at any required speed . . . Resources that could be better utilized for other purposes that bragging rights and marketing to low information buyers who think they are getting something beneficial. The iPad already exceeds the resolution of a 1080P HD TV and has a far higher refresh rate. What can be gained by more??? It makes no sense. The down side is high. Battery drain, wasted resources, heat, higher cost . . . all for momentary marketing gain?