Depends on what you like.. I use both. My main heavy Tripod has a standard pan head on it... my lighter (8oz's... whoopee! lol!) has a Giottos ballhead on it. I use the ballhead in the field.. bugs, critters, kids.. when I need speed in trying to catch something. The one with the pan head, stays at home. Your call..
The ball head does fine adjustments just fine.. if you can "aim" your camera... a ballhead will let you do it. On the Giottos (and others) there is a tension / friction adjustment as well as the main locking knob. You can set tension as light or heavy as you like.. so you can move the camera fast, or slowly and more precisely. My ball head even has a panning feature on it.. works great.