It's all relative, but a return to more localised politics (one country not 28) and accountability to the British people, compared to continent-wide centralisation. No-one is saying our politicians are perfect, but I prefer UK laws to be specifically designed for the UK's circumstances on each issue, rather than a one-size-fits-all determined in Brussels.
Being an independent country isn't about refusing to become a better place and revelling in being able to pollute, discriminate and stagnate. With the freedoms of Brexit come responsibilities, and it's up to us to make this a clean, efficient, equitable, prosperous and generous country. It is a myth that the EU saved us from some kind of careless, immoral pit. Just one example, the EU recently 'recognising that animals are sentient' yet there have been British animal welfare laws for over 100 years. Women's rights in the UK - The Sex Discrimination Removal Act of 1920, the Equal Pay Act of 1970, the Abortion Act of 1967. Worker's Rights - the Factory Act of 1833, the Disabled Persons Employment Act of 1944. Environmental Law such as the Public Health Act of 1848 and the Clean Air Act 1965. The Magna Carta of 1215. All these and many other UK laws of decent human behaviour were, of course, established before the EU existed. Had we not been drawn into the EU, it is very possible that we would have progressed more quickly on all these issues.
Not being increasingly involved in the EU's empire building (yes I know, British Empire, but two wrongs don't make a right). The EU's goal, even when it was disguised as a 'Coal and Steel Community' and then a 'Common Market' has always been a one-way move to 'ever closer union' aka a superstate. I think it is very sensible to keep our own right to authority over our own affairs, in the same way that you can collaborate with other people without living with them or getting married to them.