In my experience there is one stand out between the three of the listed Korean restaurants that I have been to in my hometown. We have at least 2 additional Korean restaurants in town that I have not been to yet.
Café Seoul: 4 stars as long as you don't go with the specials; these are just meat with Japanese style yakisoba noodles. If you wish to have authentic dishes prepared to absolute deliciousness, then go here! The restaurant is run by a husband and wife team that moved here from Korea. Stand out dishes: Spicy Squid Dolsot Bap, Seafood Jeon, Spicy pork and tofu, Spicy whole fish and so much more!
Ari Rang: 2 1/2 stars. This restaurant is also run by a husband and wife team but does not have nearly enough of a customer base to keep going for long as far as I am concerned. I had a lunchbox that came with some fried veggies, kimchi and beansprout side dishes, as small salad and grilled shrimp. The salad dressing was very refreshing but my shrimp were dry and difficult to chew, unfortunately. The people that run the restaurant are very gracious and the atmosphere is very calm and relaxed. They do have a homemade beef rib soup that I may return to try.
Noodle Bowl: 3 1/2 stars. This restaurant takes the middle ground of the bunch because it is just a little to Americanized for my taste; I grew up with Koreans and ate traditionally prepared meals from childhood. The portions are perfect for one and the flavor is good for most of their dishes but it can verge on too sweet on occasion. Overall a fair restaurant.