Your favorite device out of the box - No mods, no tweaks, before you installed anything?

Here's a question for everyone: Out of all the Android phones/tablets you've bought, what was your out of the box favorite? I'm talking about before anything was installed or (in my case) rooted, modded, or otherwise changed? For me, I think every phone I've owned came with some junk and frustrations, whether it was battery problems, bloatware, or stupid custom interfaces.

However, if I had to play favorites, I really enjoyed my HP Slatebook x2. It had its issues - for one thing, it had a proprietary AC-only(!) charger that prevented any direct connection to a computer. However, the coolest thing about it is it was the only tablet I ever bought that had a bundled, high-quality keyboard dock. Plus it had very few preinstalled apps and a totally vanilla interface. I couldn't root it, but for once I didn't need to.

My second choice would be my Nexus 7 (the first model) but it lagged quite a bit.

My least favorite: Anything made by Motorola.