Aa! Megami-sama! (TV), Sora no Otoshimono Recommendations
Both about how a young guys life changes as an unexpected angel comes into his life
Both Sora no Otoshimono and Ah! My Goddess have angel looking girls staying over at a boy's house. Their purpose appears to be similar as well, that is, they intend to grant any wish to their owners. I also find the humor somewhat similar in both. AMG however, is more heavy on the drama while SnO is funnier. If you liked one of them be sure to check out the other.
Both come from Heaven and they can hack and both have wings and both have angels :))
Both series are comedies centered around angels being sent to earth and living with a normal human boy.