Relevant question. Even with pretty good Internet connections (for European Standards) the sound quality of Google Hangouts is sometimes awful. I have heard of people preferring Team Speak (!).
Which service currently offers the best experience?
https://www.airtime.com/ just launched and although it seems to be focused towards meeting new people, it also lets you talk to your friends and family as well.
Anyone know any open source initiatives to replace Skype that could use some developer oomph?