How do I know which bank is better?

You need to compare the benefits provided by each bank based on your needs. For example, if you are looking for easy access and no paper work, then might choose to go for digital banks where you can perform all your transactions from your mobile. If you are looking for more advanced banking products such as loans and mortgages then might have to go for a traditional bank, although some of the digital banks has started to provide these products as well.