If I'd choose an european country to found my startup, it would be Estonia, they have a system in place, called E-Resident that anyone can apply to, and get "citizenship" so after that you can create your own business along with a bank account there, all online.

If you are European and have a bank account in your homecountry, from what I've read you don't even need to fly over to Estonia to get that bank account, the bank will accept that. If not, that's the only thing you really need to go to Estonia.

Isn't the UK (London to be specific) right after the U.S. and somewhat similar to Israel in terms of startups?

Historically yes, but the fallout from Brexit may make London a vastly less attractive option, causing it to lose its spot in the years to come. I honestly can't imagine starting something new in London now -- it's very expensive and it has some big political and economic uncertainties hanging over its head at the moment.

Actually, at the moment, its not really possible to create a bank account without visiting the country.

Law written in English is a huge advantage.

Many of the EU countries have an English translation of the laws available.

Doesn't matter. It's not the "source code" that runs in courts.

If you're running that close to the edge, you're in risky territory anyways. A courtcase that you win can still easily kill your business.