Final Fantasy XIII is one of the best RPGs to come out in its generation.
Dragon's Dogma has major shortcomings that are often glossed over. The world is large and completely unvaried and filled to the brim with nothing even remotely interesting to discover and explore. Within 1 hour of playing it you've faced 90% of the enemies you will ever encounter. Some of these issues are fixed by the Dark Arisen expansion pack but unfortunately none of those enemies propagate into the larger game world and you can't realistically play that content for a long time. The combat is fun, although it's not super awesome like a Bayonetta or Ninja Gaiden. It's mindblowing compared to most action-rpgs, but imo most action rpgs have unforgivably terrible action and they completely blow the "action" genre they claim to meld rpg with. So compared to those, great combat in DD. You can climb enemies and attack them... but the camera is terrible and often times I can't even see my character when I'm climbing a dragon. On top of that, it feels like the controls get scrambled every time the camera moves. 60% of the difficulty in fighting large creatures is the camera. 35% is that eveything can one shot you. 5% is the enemy actually having challenging AI. There's also some graphical hitches but honestly those didn't bother me at all.
If you ignore all of that, DD is a gem. I enjoyed my time with it but mediocre sales and mediocre score is about where it should have ended up. It feels like a game where the team was working on it and got the core mechanics down packed and the world built. They were still working on the story, making quests, adding enemies, and creating interesting locaes when someone came in like, "whoa guys, I've been carrying a zero wrong all this time. We don't have 10 months left to finish. We have one" and the game shipped in a half finished state.