Thanks for reminding me of the employment aspect!
For the popularity, I believe both ember and angular have large communities.
I checked the jobs and angular although leading here, is comparable to ember in terms of job opportunities.
I'm not saying this should play the biggest part in your descision, but it's worth noting. I implemented 2 small apps in both frameworks, giving me a small fixed amount of time for each. I liked both, Angular gave me less head-scratching and out-of-the-box Twitter Bootstrap integration.