Years ago, I started using Chrome instead of Chromium or Firefox because they made Flash work out of the box on Linux.
Although Flash is not important for me anymore, I just never looked back.
With all this new strange Sync and Log-in behavior, I'll might change to a different browser.
Those activities aren't mutually exclusive, especially when first one can help the second (example: Win10 telemetry).
A quick search turns up two earlier popular HN discussions about the problems surrounding these changes:
That said, since then, I do refuse to use Chrome
> When you attempt to install other browsers, the 360 Safe Guards will allow the browser to be installed but will then popup saying not to let it become the default browser.
> When users of 360 Safe Guards run a check of their system, if they don't have the 360 browser installed it will give them a failing grade. If the user chooses another security software to protect their failing grade browser, the Safe Guards say no.
Also interesting is a statement by Opera on the 2016 acquisition :
> The transaction would give Opera access to the extensive internet user base of Kunlun and Qihoo in China as well as the financing and other support of the Consortium that would allow for the full potential of the Company to be realized. At the same time, Kunlun and Qihoo would be able to cross-sell their products and services to the Opera user base, and benefit from Opera’s leading mobile advertising platform.
 https://arstechnica.com/information-technology/2016/02/chine... (can't find a direct link)
-Supports Chrome extensions
-Excellent native features including Ad blocking, VPN, and messaging support
-Fast and low memory usage
-Draws battery power at about the same or lower rate than Safari on my 12" MacBook
Every few months I experiment with switching over to Safari or Chrome again, but haven't found any good reason to do so.