I’ve founded companies in the UK, US and EU. I’d recommend the UK. The cost of a limited company is £12. It’s formed in a day. Use https://www.ukpostbox.com if you need an address. The legal system is well known and entrepreneur friendly. Accountancy and company admin are simple and relaxed. HMRC is supportive. You can pay dividends on a flexible schedule. There’s a very large ecosystem of financial support, innovati…
I would have seconded that up to the botched implementation of Brexit, now there are many areas of increased risk because (a) certain things are not yet sorted out (increased uncertainty) and (b) the process is antagonistic and politicized instead of cooperative, so the issues are unlikely to be resolved anytime soon. The UK is still a relative good countries for starting up, just not as good as it used to be.
(if you're selling beef, cars or washing machines then yes there's potential uncertainty)