Personally, I find myself routinely more satisfied with the overall experience on iOS than Android. We'll just consider tablets since I don't own an Android phone. I own an iPad 2 and an ASUS Transformer TF300 (with dock). The largest problem that I have with the Transformer is that the battery life is downright awful. I try to go through and micro-manage the running apps, but it seems they have a life of their own at times.
It's just frustrating to deal with and these apps aren't even doing anything other than sucking up power. I try and close them from the app history, but apparently they're still running in the background. At least in Windows, applications will exist in the taskbar or the system tray. If an application hides itself from you on a desktop OS, chances are it's probably an application you don't want anyway (malware). 😛 I've had a few app show up in the notification area, but not all of them. I find out that a random app is running when I unlock the tablet and get some random notification.
As much as it isn't "true multi-tasking", I've grown rather fond of how iOS's "multi-tasking" works fairly well and doesn't destroy your battery doing it. It presents some problems with things such as custom alarm apps (you have to leave them open) and other things like that, but I don't use them so I don't care. 😛
My lack of desire for the utmost level of customization might also explain why I don't care much for using Linux. Even if Linux could run any game that Windows can, I still wouldn't use it. I also don't like OSX much either if that makes you feel any better. 🙂