what does it indicate when appling the brakes make a vahicle pull to one side [ pulls to the right]…also when it is slippery out the front right caliper seems to grab more/faster than the other three brakes. bad caliper? brakes need to be bled?

It means the brakes aren’t applying equal force to the front wheels so the vehicle turns towards the stronger brake when it is used. I recommend you have a shop get this trouble fixed as soon as you can. You never know when you might need all the braking power you can get when you are out on the road.

Seems to me you have a stuck piston in your caliper or you’re getting brake fluid on you pads. Leaking from caliper piston. Once the pad is saturated with any foreign contaminate, it will always react to any pressure.

Sounds like a stuck caliper.

A front suspension problem such as a bad ball joint or whatever can also cause a car to dart to one side or the other.