Little Thai is without a doubt my favorite Thai restaurant - all because of their excellent seafood dishes. Unlike most local Thai places, which limit their seafood selection to "prawns", they also have mussels, scallops, and wonderful baked fish dishes. They also have decent service, the atmosphere isn't unpleasent, and prices are about $20 - 25 for a meal for two. But it's the food which sells this place.
If you don't like seafood, try the Masala Curry. It's the only thing my fiance ever gets there. Personally, I recommend the baked fish - you will have about eight different choices. There is an excellent selection of beef, chicken, and vegetarian food as well. For a beverage, their Thai tea is excellent - I ask them to make mine with coconut milk instead of half-and-half.