As @HarleighQuynn has already stated, the low-latency is definitely a plus with Mixer over Twitch, especially if you happen to use an Elgato HD60 S to stream. Everything will literally be almost-instant as a full experience.
I dig the presentation/UI of Mixer a lot too. That blue just feels a little more comfortable on the eyes over long periods of time than the purple, which says a lot for a guy that actually really digs purple since I’m born in February lol. That goes for the actual design of the channels too. You have more freedom in designing your “About Me” section than on Twitch. The Twitch panels are cool, but limiting. On Mixer, you can really add all the info, images/gifs, and links that you want. The way they handle adding your social media links is really clean, makes it a one-stop shop right on the page. If you need an example, head over to my channel and check it out, I really used that space to the fullest (no, that’s not self-promo, you don’t have to follow me lol).
The co-streaming feature on Mixer is also AMAZING. Twitch is trying to do the same thing off the recent with their Squad Streaming feature, but Mixer has had it for a good year or 2 at this point and they have it perfected. Your co-streamers don’t lose any stream quality and it’s open to everyone, not just Partners.
Also, just as she stated, the community and culture on Mixer is definitely more welcoming. For a while, my channel on Mixer wasn’t really growing much because I would keep going back and forth between Twitch and Mixer and wasn’t really being consistent on the Mixer side. I blame myself for that as I was struggling with balancing life stuff and that nagging “well, you have to stream on Twitch because that’s the bigger/more established platform” thought in my head. But about a month and a half ago, I finally accepted that I wasn’t really happy streaming on Twitch and I had to stop myself from forcing it. I committed fully to Mixer and got consistent, and in that month and a half, I’ve gone from like 140 followers to 309 followers. I’ve also built some good connections with some of the partners over on Mixer like MunchkinDoom (who I’ve actually known for years but didn’t realize she streamed), Quanicus, and MedusaChan. I have yet to really chop it up with a streamer on Mixer and there be an attitude where it’s like “oh, you’re not as popular as me so you’re beneath me”, which I can say I definitely experienced on Twitch and YouTube. The vibe is more like “man, you can do this, just create and build your community, we want to see you win”, and I appreciate that a lot.
Yeah, you’ll still have your occasional trolls and your streamers that can be a little “eh” attitude-wise, but I feel like they’re far outnumbered by the positive folks on Mixer. And like Harleigh said, the support team is A1. The few times I’ve experienced trolls, it was as simple as reporting and banning the user, and Mixer responds in a matter of minutes. Not days, not weeks, not months - like 5 minutes. And if the user tries to make a new account and dodge the ban, Mixer goes to the next step and does IP bans, even down to the level of console bans if the person happened to be on Xbox. They don’t play when it comes to the trolls.
Oh, and just a common misconception I want to clear up - you don’t have to have Xbox to stream on Mixer. You don’t even HAVE to have a Microsoft/Hotmail email to sign up. My Microsoft account login is my Gmail address. You can also sign in with stuff like Twitter or Discord. There’s streamers on Mixer who play Xbox, PS4, Nintendo Switch, PC, retro games, all of that. PS4 just doesn’t have a Mixer app (or they didn’t the last time I checked), likely due to competition reasons. I stream my console games from PC using OBS Studio, so not really an issue for me. I play literally all the consoles I named in the second-to-last sentence on Mixer all the time.
There’s definitely a place for everyone to find their niche on Mixer because it’s so young, and I’d advise it if you’re interested. Being that Mixer is so young in comparison to Twitch, there’s obviously not all of the categories and carved out categories (what used to be Communities) like Twitch has, but things like that will come with time. I’m more intrigued by the idea of carving out my place as a quality variety and retro streamer on Mixer. Variety streamers and retro streamers DO exist on Mixer, some are even Partners, but they’re not as deep as on Twitch. The opportunity to make myself one of the main names for that on Mixer over time drives me.