I’d go for free spins because I mostly find them interesting when I’m browsing slot games. When comparing UK casino bonus formats, I found https://nine-win.co.uk/ with the general information about the available options. One thing I like about Nine Win is the variety of games, since having more titles makes a game-related bonus more useful to me. I also appreciate straightforward navigation because it’s easier to find the relevant details without clicking through lots of pages. Deposit bonuses can be worthwhile too, especially for players who prefer that format, while cashback may suit someone looking for something different.