I think there could definitely be more choices for TS at Magic Kingdom, but since we do like some, and are happy to go to monorail resorts to eat, it's not a problem. LTT is one of our favorites. It seems to get reviews on both extremes- great and awful. However, the colonial theme is great, and we loved the food. It's not gourmet, but it's definitely tasty food to us.
CP is another favorite. I'm not crazy about buffets, but their breakfast buffet absolutely amazed me. I didn't expect much, but have been raving about it ever since. This time we're trying dinner instead.
However, Tony's and CRT don't appeal to me at all. I've never had any desire to eat at either one. Sometimes you just aren't interested in something, and know it. That's how you must feel for all the MK TS restaurants. However, if I had to firmly recommend one, it would be CP (would have been LTT, but it has such mixed reviews that I don't know how it really is overall.)