What's not to like. She's pretty, strong, calculating, and doesn't take shit from anybody. Unlike other Star Wars heroines who have everything handed to them and live a cushy live, Daala has the deal with the death of her lover and commits a desperate struggle to hold what remains of the Empire together and keep it alive. I think people underestimate her part in keeping the Empire alive in the expanded universe.
I have been in love with Daala since I was 13.