When I did my patrol medic course (a long time ago now) we were taught that a good first aid kit is good but to look at everything else that we had with us in our packs or vehicles as an extension of it. The Key though in my mind is knowledge there is no point in having the worlds best FA kit if you dont know what to do.
On gloves (you guys in Aussie will love this) in winter where I am we wear polypro gloves in the mornings and if dosn't warm up all day as metal gets to cold to handle without pain and loss of skin on really cold ones espeacilly in the hills