Eth has even less changes of being stopped imho. You can technically always start to weed out mining facilities and ban those, like they did in China, but it will be harder to prevent people from staking.
Cryptos being confiscated is a whole another issue and it doesn't need any kind of attack. Basically they can already do that and people running CEXes are complying with authorities. So anyone in a black list technically should get their accounts frozen.

What it comes to growth potential, it's anyone's guess, both of them have potential and great arguments for and against, but if i had to choose, i would say eth has more potential to grow.