Best 10" Android tablet

Hey,

My wife wants an Android tablet with a large screen. I tried to pitch the excellent (an affordable) Nexus 7, but she wants the larger screen instead. What are the best large screen Android tablets, if any, and why? Ignore the Kindle as she's not convinced about the prospect of not being able to access Google Play store. She likes Samsung products, but I keep reading that their latest tablets are laggy.

Thanks,

-sanshiro