So one of my friends showed me this new program called Discord. It is like a clean uncluttered version of Teamspeak where you can host your own Server for free (currently at least....) They got some solid programms and apps for the basic mobile platforms and OS. They are working on a linux version as well.
I can't really give a serious answer. I've been using Ventrilo ever since I started PC gaming, and Mumble is great, but I've never been a huge fan of TeamSpeak and I've never head of Discord.
Personally I use Teamspeak. I've tried Mumble before, but something about it just seemed clunky.
Though I don't use push-to-talk, so maybe that has something to do with my preference. I use voice activation, and teamspeak's seems to be the best for me.
I played with a group for a while that used Mumble, so I do have experience on both. I guess bottom line is, try them both out. See which one you like the most.
Teamspeak is a little more "refined" I would attribute that to their licensing. I have run servers for both and have always landed on mumble. I also really like the sound quality of mumble, most of the people I play with have "proper" mics and nice headphones. But to be fair I have not done a ton of testing with TS3 regarding fidelity.
i have heavily used both. teamspeak pros encrypted and allows you to up your encryption infinitely. very low bandwidth easy to save address's and switch between them very good management of admin privileges and rooms
cons requires you to run a server or pay for one. can be easily ddos'd. and doesnt have many features. the updates are usually useless.
discord pros you dont have to pay for anything very easy to get on a discord channel with little to no knowledge about how it works. you can upload and show pictures, videos, and other files directly form your pc or as links. you can create endless servers nice looking gooey interface logs chat for everyone so you can catch up on conversations you missed can run off your internet browser updated frequently with useful new features every time lets you know when people are replying
cons not the best privacy policy you can only perma ban people, not temp ban or mute/kick/move you cant heavily encrypt your traffic no sound boards T_T that i know of yet..... not the best features for adm user