The anti-hero or hero usually has a journey or quest so they...

The anti-hero or hero usually has a journey or quest so they are interesting as you find out what's going to happen, what they are looking for. What are they trying to do? Sometimes what they do is heroic or comes with a price or sacrifice or maybe the way they do things isn't so great and that's when they become anti-heroes. But the journey of an anti-hero combined with a good story done well is always worthwhile.