I've used all of the Windows operating systems from '95 all the way up to 7. I hated Vista with a vengance but out of all those, I prefer XP.
For me, it's a dodle to use, easy to navigate and find/fix things when they go wrong.
For a mobile phone, I used to have an Android. I liked it and it suited my needs of mainly texting and a bit of web browsing. I'm now using an HTC Windows phone. It's more pleasing to the eye than the Android, but I find the menus and icons are almost impossible to personalise. You can get a third party app to do it, but only changes a handful of icons. The Windows phone is a lot quicker than the Android and faster web browsing. Again, it suits my needs for texting a bit of web browsing when I'm sitting on the loo!
I've always been anti anything Apple. I've tried to put music on an iPod but typically you have to use everything Apple to do anything. I don't like the way they tie you down to use everything of theirs and not as free to just drag and drop your music over.
Now, saying that, I've been bought an iPad currently on iOS6. I was a bit sceptical at first as it's 'Apple'. The menus are nice, everything is easy to navigate and find. I've got a data SIM card in the side which I use when I'm not at home and I use WiFi at home which was a dodle to set up. Web browsing is quicker than I ever expected, it's faster than my PC. Can be a bit of a pain in the old peverbial using some sites, like trying to list an item on eBay. I'm not really bothered about trying to personalise anything as I like it the way it is.
There is a massive variety of free stuff out there to use from games to apps.
I will admit I really do like the iPad. It's compact and convenient. Apart from not being able to open/use any existing Microsoft office files (without paying for an app anyway), it does everything I want it to do. I've even set up wireless printing, so really, I don't even have to use my PC any more.
I have an Xbox. Second one Ive had as the first one kindly developed the 'Red ring of death'. Other than than, I've never had any issue with anything to do with it.
So really, I think it's all down to personal taste and what you want out of the device. I used to hate Apple, but the iPad does what I want, so I like it. I also like Windows, both the phone and the operating system.