When comparing Google Hangouts vs Blizzard Voice Chat, the Slant community recommends Blizzard Voice Chat for most people. In the question“What is the best voice chat for gaming?” Blizzard Voice Chat is ranked 5th while Google Hangouts is ranked 8th. The most important reason people chose Blizzard Voice Chat is:
As long as you have the Battle.net app, no extra software is required.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Mobile support
Hangouts offers both an Android and iOS app so users can participate from nearly any mobile device in addition to his Desktop.
Pro Screen sharing
Any user can share his screen (or only a specific desktop or window) while still continuing an audio conversation.
Pro Free group video support
Hangouts works with up to 10 participants using video out of the box or up to 15 if you are a business, government or school. It determines who is the primary speaker at any given time, and the camera view automatically switches to that user.
Pro Useful for businesses
Hangouts can scale to become a videoconferencing solution for an entire company, since the software can run on nearly all platforms. In fact, Google itself uses Hangouts as its meeting room video conference software.
Pro Easy to start using
Hangouts is integrated with Gmail & Google+, does not require you to download desktop software, and all chats can take place directly in your browser, significantly reducing the barrier to entry for a new user.
Pro Completely free
Google offers all features of Hangouts completely free. There are business, education and government solutions that increase the participant count to for video calls to 15 and offers support.
Pro Cross platform
Hangouts work on Android, iOS, Chrome OS, web and as a Chrome extension.
Pro Live broadcasting and instant recording
With Google+ “Hangouts on Air”, you can broadcast any hangout to an unlimited audience via your Goolge+ Profile or simply a generic YouTube link. Moreover, any Hangout on Air (public or private) is automatically saved as YouTube video that you can keep for private reference or use in any way that you would normally share a YouTube video. This allows you to record conversations without additional obtrusive software.
Pro Google Voice integration
Allows for a fixed phone number, receiving and making calls. Calling US or Canada is free.
Pro Integrates with Google Maps for sharing locations
When chatting with people while trying to plan a meet up, the share map button can be extremely useful.
Pro Android app does both sms and hangouts messaging
Pro Built into the Battle.net app
As long as you have the Battle.net app, no extra software is required.
Pro Clean UI
It has a clean UI that continues the dark blue Blizzard theme.
Pro hi
Pro killer
Cons
Con Poor video call quality
Only goes up to 720p30 + low bitrate.
Con Owned by Google
Con Lacking clients for older versions
Con High hardware usage
Con Not recommended for long sessions

Con Won't work on Windows 8-style UI
As Hangouts uses a browser plugin on the desktop and it doesn't work with Windows 8-style UI, it has to be used in desktop mode.
Con Can only chat with friends and friends of friends
Though it might limit the amount of unwanted rude people in your chat, it does limit the functionality in some games, where chatting with randoms would be beneficial.
Con Bad voice quality
The overall voice quality if very bad. The voice is kinda high-pitched and it adds some background noice to everyone, even when they're using a noice-canceler
Con Disconnects every 5 to 10 minutes
I have to go back to my desktop to remember to invite my friends to the voice chat. Incredibly annoying.
Con Can only be used for Blizzard games
The voice chat can only be used for Blizzard games. Luckily, their games include World of Warcraft, Starcraft, Overwatch, Heartstone, Diablo and many others.
