They're very different places. Parts of Hastings are lovely and up and coming, Hove came up years ago. Hove is very pricey while Hastings is more affordable. There are lots of lovely places in between these areas too
Only ( partly) joking! I live in Hove and am still alive. Hove is fine but Brighton more interesting and has a better vibe; it depends what you're looking for really. I honestly wouldn't consider either to be unusually dangerous places, it's a famously inclusive city with lots of young people around, it has a very upbeat feel. The town centre can be pretty, erm, lively on a weekend evening with the drunken hen- nights etc but that adds to the charm!
sasspuss17 Ok so you aren't that bored in Hove. Do you ever go to London when you need entertainment? I'd like to live near London in a tolerant place. B&H works on its own which is a plus. It seems great and affordable to eat out. I believe the city ticks a lot of boxes for me. People seem very friendly (too friendly?;) On the downside some areas are dirty with bins everywhere.