My most used fixed blade is a Benchmade 201+ Activator, which has an almost 3 3/4" blade length. It's a full tang drop point design with a slight recurve.
Most of my preferred fixed blades are wider with a slight recurve. For some reason I've just always found that design to work well. The wide blade allows for a nice thin edge grind, while maintaining a strong stout blade. The recurve helps the blade to bite into what you're cutting, rather than just skip across the surface (this is especially true when cutting rope).