My experience has been:
Vinyl gloves are garbage, and should be left to grade school food service folks. They breach far to easily, tend to stick to your hands and not fit your hands properly as a result. When you have that vinyl webbing between your fingers, its an invitation for a ripped glove.
Latex should just be plain outlawed on rigs or anywhere else. Most patients, or anyone else for that matter, doesnt know they have a latex allergy until they break out in hives and their throat starts to swell. Then you are treating a patient for shock and not taking care of their original problem.
The best gloves are nitrile, hands down, as it were. I wear purples when thats all I have but I prefer the black gloves that are now being made by several manufacturers. They are billed as the toughest nitriles on the market, which I cant prove scientifically, but I do know that I have never, EVER had one break on me. Ive even tried to breach on using things that might happen in the field and its not easy to do. They even seem to be more resistant to needle sticks. Probably one reason why alot of military and police medics and LEOs have switched to them. Ive even seen nitriles in OD green, but havent had the chance to try them out yet. I usually bite the bullet and buy my own black nitriles because in my experience, most agencies, and hospitals, will generally supply their stock rooms with the cheapest garbage on the market too hold down cost...safety be damned.