I reject the choice. Nothing about a game having lots of grinding means you can't have good story, and nothing about having a good story means there can't be grind. That being said, I don't know if we're using the same definition of grinding, because it's something that no one would want to me. Grinding is doing soul-crushing repetitive chore-like tasks in a game in hopes of progressing or earning some reward. Games like Mass Effect 2 for example (any more) have shown that you can have great balance between gameplay and story, and the story engages you more deeply into the game world, and actually makes the gameplay more meaningful to you.