I've owned an Ovation Elite model for about 10 years and have played several Ovations over the years (owned by other people.) In all honesty I've never been really disappointed with any of them. I do have other guitars but the Ovation is one that I play a lot and I'm not afraid to take it around with me.
Ovations tend to have narrower necks so if you have smaller hands or play a lot of electric guitar, you may find this appealing. As with a lot of things, everyone has their personal preferences with regards to sound but I like the Ovation sound. Some people argue that the Ovation is a "plastic" guitar that doesn't change with age and that wood matures and thus changes the sound over time. While this is true, it does not necessarily mean that the sound will get better.
It's been mentioned already but I love the Ovation's bridge design and the fact that it doesn't have any pins. This translates to an easier time changing strings (at least for me.) The action on an Ovation is nice and low so the strings are usually easy to press and hold so it's forgiving when your finger doesn't quite hit the "sweet spot" of the string.
What it all comes down to is that you can definitely do worse than an Ovation. I recommend playing the model you like in the store extensively before you buy. Don't make up your mind before you buy, there are a lot of options available to the guitar player nowadays. Take your time, you never know what you'll find. Good luck!