For something unique I agree with the suggestion of Seviche. The food and service are excellent.
For Itailian, you will be thrilled with Melillo's and I think it will make Old Spaghetti Factory a memory.
As for Thai - I personally enjoy Mai Thai in Jeffersonville, but an excellent alternative is Basa a Vietnamese restaurant on Frankfort Ave. If you like Thai you will LOVE Basa. Food and service are excellent.