Souther Pines is good, but conditions are sometimes a bit tough, Mid Pines is really fun - not sure about "not many strong holes" as the course certainly has many. Never played Pine Needles, but that is a must if you can. Legacy, was a never course, I think done by Gary Nicklaus, had some beautiful holes, lots of water, good to play. I real steal are the Magnolia and Holly courses at Pinewild, the Holly course is a Gary Player design and is a great play. Country Club or North Carolina is definitely worth it, if you can get on. Making about a, 35 minute drive out of Pinehurst is Old North State. This course I thought was awesome, and its last three holes are on a lake, with another par 3 (ten i think) offers your first view of the water.
The Pine Crest is a GREAT place to stay, IMO, regardless of what other posters may say. The food is excellent, the service top notch, such a friendly atmosphere that is down to earth, and can not be beat. The inn also boasts a fairly storied history, that has been neglected to be mention. The rooms are rather small though.
#2, 4, 6, 7, 8 I have played, all great to play, some better than others but all worthy of play
Have a great trip!!!!!!