I feel that Safari (mobile one) is way closer to the IE6 status with its ban of competition on platform, lack of standardised features and heavy handed management.
You can easily replace Chrome, it's not even a platform default. You're forbidden from replacing Safari.
I'm not sure why you're voted down. Mobile Safari has thrown some really bizarre and awful bugs at a few projects I've worked on, and given how critical mobile experiences are these days, it's genuinely a pain in the ass. It's a very nice mobile browser for the most part, but what it gets wrong is enough to make me kind of loathe having to deal with it.
You can easily replace Chrome, it's not even a platform default. You're forbidden from replacing Safari.