Really good point on Skype being friendly to beginners. I never realized it but my parents get really uncomfortable when I try to walk them over how to set up Google Hangout, and most of the time the conversation just continues on Skype and we drop the experiment. I mean for them its a hassle to install all those plugins and then invite and open emails and confirm and whatnot.
The Android experience is truly far superior to the web interface. My parents just hit the video camera button in the chat app and call me or my younger brother.
I'm a professional programmer that went to engineering school and I can't be fussed to start up hangouts with anyone. It seems like it takes a full 30 minutes to get everyone in the same hangout and I always feel like a buffoon for suggesting.
You used to be able to press two buttons and have a hangout up, then copy/paste the URL and send it to someone.
Most elegant video chat product in existence.
Then it got super complicated with circles and adding people via their g+ accounts and people who use 3rd party chat programs and permissions etc etc etc..