World's best ball bag (JMO, of course):
Ump-Attire Ball Bag
Generous size. Quality construction. Heavy fabric. Bruch pocket actually big enough to easily get the brush in and out. Indicator pocket. Pen/pencil pocket. My only rap on it is the navy blue version has faded a bit (not too bad, but just not sharp looking anymore). The rear zippered pocket is great for car keys.