Sadly, most of the replies you've gotten are terribly biased or uniformed. It is a good question. I'm not connected to any of this, so this answer is solely from my own understanding.
For those that don't know, the Brave browser has Tor tabs, which route through Tor. It also has the standard private tabs. Tor support currently exists only on the desktop Brave browser.
Brave has been supporting Tor, and running Tor relays to improve the network.
Brave is newer at the game. They have had Tor tabs less than a year. They can do fingerprinting protection and no-script, but it's still a full featured web browser, with a lot of risks. The fingerprinting protection isn't as good as the Tor Browser, and unless they changed something, Javascript wasn't disabled by default in Tor tabs.
The Tor Browser has been around for a while and is meant to be a secure web browser from top to bottom. It has had a lot of development looking to find and fix possible leaks and to ensure security. That is its primary focus, and it is pretty good at it.
If you want to use Tor casually, maybe access an onion site, or just get a big boost in your level of privacy, the Tor tabs in Brave are a nice option. They are really easy to use and give great privacy. It is good for casual Tor use.
If you want (or need) serious privacy, the Tor Browser is a better choice. That is its purpose. It is developed to be hardened for protecting the user and it will provide better protection.
It is also based on Firefox, and when possible improvements it makes to Firefox feed back into regular Firefox, strengthening their position in an ever-less competitive browser market. Not something everyone cares about, but it could be relevant.
This is amusingly uninformed. Saying nothing about the ad-ware comment, since that seems designed to deliberately obfuscate/obscure reality, you probably weren't aware of:
Brave's "Basic Attention Token" was described as replacing ads on websites with ads from Brave's own ad network[0], which I recall is a common practice among adware to go unnoticed on an infected user's machine. The homepage of the Basic Attention Token completely fails to mention that it blocks publisher's "genuine" ads and replaces it with their own ads[1].
On top of that Brave has seemingly no interest in asking for consent for this practice, while also going as far as to use people's names and photos to solicit donations to them, without those people even being aware that Brave is accepting money for them[2].
Now I believe the ad-replacement feature is opt-in, but I'm not willing to install Brave and go through the opt-in flow to determine if it goes through the proper steps in explaining that the Brave Ad money may never reach its intended recipient.
This is amusingly uninformed. Describing Brave as adware is generous to say the least, Brave is more of a scam than a business. The kind of scams you would find in tech bubbles like what happened in late 1990s.
Could you elaborate? As far as I know, Brave promises to give you a browser and it gives you a browser. Does not sound like something I would call a "scam".
Just from considering that Brave is a complete meme, like c'mon switching ads to other ads is one of the stupidest ideas I've ever heard. You are not improving anything except padding pockets of Brave developers. To make matters worse it is just Chromium with new shit on top.
Literally anything is better than Brave, well, maybe not IE.
There are a bunch of privacy-improving patches in the Tor browser (such as protections against font fingerprinting, screen size fingerprinting, and so on). Brave doesn't have those.
(There's also the fact that Tor Browser routes everything over Tor, but apparently Brave can do this too now?)
For those that don't know, the Brave browser has Tor tabs, which route through Tor. It also has the standard private tabs. Tor support currently exists only on the desktop Brave browser.
Here is the announcement: https://brave.com/tor-tabs-beta
Brave has been supporting Tor, and running Tor relays to improve the network.
Brave is newer at the game. They have had Tor tabs less than a year. They can do fingerprinting protection and no-script, but it's still a full featured web browser, with a lot of risks. The fingerprinting protection isn't as good as the Tor Browser, and unless they changed something, Javascript wasn't disabled by default in Tor tabs.
The Tor Browser has been around for a while and is meant to be a secure web browser from top to bottom. It has had a lot of development looking to find and fix possible leaks and to ensure security. That is its primary focus, and it is pretty good at it.
If you want to use Tor casually, maybe access an onion site, or just get a big boost in your level of privacy, the Tor tabs in Brave are a nice option. They are really easy to use and give great privacy. It is good for casual Tor use.
If you want (or need) serious privacy, the Tor Browser is a better choice. That is its purpose. It is developed to be hardened for protecting the user and it will provide better protection.