The Nexus 9 is the new hotness, but last year's Nexus 7 is still a speedy piece of tech. I have one on my desk right now, and I'll vouch for it. The little tablet has handled everything I've thrown at it with ease.
Anyone looking to pick one up may want to hop over to Groupon right this moment. The site is currently offering the Nexus 7 for $149.99, which you can get down to $135 with a coupon code.