I think the guys have given you some good info. Especially the suggestion to try and see if you like brine vs no brine.
I personally brine all Whole birds and any breast cuts. I do NOT like dry food at all and brining has always guaranteed me juicy whole chickens and chicken breast. An easy test would be to simply buy a pack of boneless skinless chicken breast. Brine half and don't brine the other half.
As for dark meat like qtrs, thighs, or drums, I never brine them. They are juice no matter what... unless you cook them to a crisp lol.
I do like 1/4 cup salt blended with about a cup of water in the blender and then add any additional water to cover the meat and that is usually good to go for about 3 pounds of meat to 1 whole 5.5 pound chicken. DON'T add any salt once you pull the chicken out of the brine, just add your other spices like pepper, onion, garlic, and any spicy pepper/paprika/etc.
The good thing is that chicken is pretty much the cheapest meat you can get and if you dry it out you can always shred it and add bbq sauce or turn it into a chicken salad. I cooked 11 pounds of whole chicken 2 days ago for $0.64/pound :)
Another word to the wise. To get edible or may be even crispy skin your best bet is to cook chicken at 325F or higher. Cook under 300F and you are likely to end up with leathery/rubbery skin :(