Spider Woman (a.k.a Jessica Drew) naked. Here is some information on her powers taken from wikipedia
As a result of a combination of a special serum derived from spider blood and a certain radiation treatment, Jessica possesses superhuman strength, endurance, reflexes, and speed. She can focus the bioelectric energy that her body generates into "venom blasts" sufficient to stun or kill normal humans, and she can also adhere to almost any surface by excreting an unknown adhesive substance from her palms and soles. Jessica rapidly forms an immunity to all poisons and drugs, and is totally immune to radiation. Her body also exudes a high concentration of pheromones which elicit pleasure in most human males while eliciting fear in most females, though she uses a chemical "perfume" that can nullify this effect. She has also demonstrated superhuman senses in her solo series. Jessica has lost and regained her powers more than once, but has recently emerged with her powers restored greater than ever. She was once only capable of gliding with the help of the glider web extensions on her costume, but now possesses the power of full flight. Her top speed is still not known.
In addition to her powers, Jessica is also a superb hand to hand fighter, and has trained in several styles of fighting including boxing, judo, karate, and capoeira, learned under the training of the Taskmaster. She has also had training in fencing and the use of many other weapons. Jessica was trained by HYDRA (and later on by S.H.I.E.L.D.) in covert operations, stealth, espionage, and information gathering and is a superb athlete. She speaks several foreign languages, including Korean, Russian, French, Spanish, Portuguese, and German. Jessica also received vocational training in undercover detective work and sometimes carried a Walther PPK handgun.