This depends a lot on your bandsaw. Most small saws can't adequately tension a 3/4" blade even if they have the capacity to run one. For general work I like a 3/8" 6 tpi. For heavy duty resawing or log cutting I run a carbide tipped 5/8" 3 tpi blade. It's about all my 15" saw can adequately tension. One day, I will have a 19" saw, and a 1" 1.3 tpi Lennox carbide blade will live on that thing. My little saw will be reserved for scrolling and light duty work.