Alright. I think you would know better than I would which themes are likely to be well-suited for a default theme. I expect we’ll revisit that discussion as we get closer to v2 release.
In the meantime, everyone reading this, please try out these new themes (GeneriK and the Storefront fork) and let us know what you think!
One thing I saw when reading through the code for GeneriK that I really liked: lots of actions and filters. This makes it easy to override just about any aspect of the theme that one might need to customize in a child theme.