There are only a handful of games I'd give a 5-star rating. Might and Magic VI and VII are two of these. Excellent story, non-liniar progression and interesting skill-based combat make for an interesting game. The graphics are obviously rather out-dated nowadays, but that definitely doesn't stop me enjoying the game on its own merits every now and then.
If you're keen to try an old-school free-roaming RPG, I really couldn't rate this game higher. The Mandate of Heaven is top-notch too, if you can get your hands on it.