If only they could truly offer full reader integration
Google currents, visually, offer a better reading view of articles (although on certain blogs, it skips pages), I'm disappointed that it doesn't offer a complete Google experience in terms of it's ability to pull from your Reader account. I use Google Reader for all my reading content and just don't understand why Google would release a product that doesn't do what the other apps do - syncing of read and starred articles because I don't like having to go into the Reader app itself or on the web and click "mark all as read."
Flipboard on the other hand, does have a seamless Reader integration system but, I don't like how it aggregates all of the reader items into one feed. I have a time period set for when I read certain articles (news in the morning, tech news in the mid-afternoon, etc.) it's only effective if you don't have a lot of sources in your reader account. Most of the sites offered by Flip I have in my Reader account so separately adding them is redundant.
If only one of the two can make that happen, I'm stuck with the default Reader app. *Sigh*
But if you don't use Google Reader, then either one is excellent, but I favor Flip because it's tad bit faster in performance compared to Currents and it's better integrated read it later services (I use Pocket).
Device: Epic 4G Touch, Motorola Photon 4G & 32GB Wifi only Nexus 7
Rom: Does it matter?