making combat fun is rather hard to do, because people have so different expectations, more or less all agree that Bethesda can't make good combat even if their life depended on it, but when it comes to what's actually good, or fun, opinions vary significantly. For example I think that FF13 has great combat, really fun and fast based on decision making and paying attention, other people think that it's horrible because you don't actually do combat, you more like supervise it. Some people like real time with pause, for example, some hate. Some people hate anything turn based so much, that when you read what they say, you actually facepalm in a real life, at least I do. Some think that action based combat is boring and nothing but button mashing, etc.
What I mean, it's not as simple matter as it would seem.