Most people will tell you a Boomstick. But it depends on what kind of paint you shoot. If you like a particular ball, then one barrel might not be for you. It all depends.
yep Paul said it,
there is nooo such thing as the best barrel (well some are crafted better)
It all depends on the marker, the paint being shot and of course the playa
PAINTSIZE IS A VERY IMPOTTANT ASPECT WHEN THINKING OF BYING A BARREL IF U USE LOTS OF DIFFERENT TYPES OF PAINT GET A FREAK BARREL IT WILL SET YOU BACK A LITTLE BUT IN THE END IT IS WORTH IT . ON THE OTHER HAND IF U ONLY EVER USE ONE BRAND OF PAINT THEN GET A BOOMSTICK WITHU R PARTICULAR BORE SIZE I ALWAYS USE DIABLO AND I BOUGHT A SMALLER BORE BOOMSTICK AND MY PAINT SHOOTS PERFECTLY