The second shot tipped me off that you were using a small apeture. The starbust effect in the lights. That sign is just brite. The best way to solve it is to take two shots from the identical position and overlay them. Expose for the sign on one, then expose for the rest on the other. I'll do it in camera using the overlay function. You could also do it in photoshop. If you use a filter, everything on the filters dark side won't look right. Be sure to use the same apeture for both so the depth of field is the same. Also, try around F11 so that the diffraction isn't as bad. You could also do three exposures. One for the hotel lights, that way everything is perfect. Also, do this about 10 - 20 minutes after the sunset, you will have an awesome blue sky. I've done this with about six shots to get things the way I like it. Remember the Christmas photo in the dunes? That was about five. All done in camera. sh*t, giving away secrets.