What’s the best beef steak for the BBQ?

This can be a matter of preference. Personally, I recommend Rib Eye Steak. It is cut from the Prime Rib and has the perfect combination of flavor (due to fat marbling) and tenderness. Other great steaks for grilling, by order of tenderness, are Tenderloin, T-Bone, New York Striploin, and Top Sirloin.