I agree with you! And I think there will be no site which would give such kind of information.. Then most of these manufacurers are going to lose market, don't they!!The way I see things is this:
If you need a truck of a PC you get a Windows machine. (Truck in this sense means huge business class applications, science research, CAD, etc.) Work.
If you just want something easy to run and not really into programming, buy Apple.
If you want to consume media, Apple or Amazon tablet.
If you want to work with a tablet. Android or Windows, with a bluetooth keyboard in tow.
If you want to experiment or be a cyber monkey. Unix distro. But NOT Apple.
You want to game. PC or Console. I favour console, because the controllers lessen the RSI issue.
For getting a tablet I'm rather picky.
I do want Android, as it tends to have less restrictions than Apple. And usually you can run a modded version on it.
I do want to be able to run more than one app at a time.
I need a micro SD slot.
I do want a mini-HDMI out, HDMI out or the ability to port the display to a flat panel.
I do want a decent bluetooth stack that can support all devices not just a few. (cough, HTC, cough)
So far I have yet to find a good site that you can select these kinds of options and then get an aggregate answer.
Notebook and PC sites have them, but so far none for tablets.
Apple of course doesn't have such a thing because Apple only believes there is ONE kind of PC user.
And YES an Apple is a PC, a personal computer. The marketing people at Apple hate that. But got to call a spade a spade.