Most of them are to some degree, like most people. Trish, Gail, Candice, Torrie, Melina, Stacy, Mickie James among others have confirmed they are ticklish on some part or another. The two least ticklish are Jackie Gayda/Haas who is only ticklish on her feet and no where else and Lita (Amy Dumas) who is not ticklish on any part of her body.