We've used both kinds of flour, and while I've always used all-purpose flour, my son always uses bread flour. It's a personal preference we both have. However, here's the truth, so you can decide which is best for you. Bread flour contains more protein, which equals more gluten, which equals more elasticity and stretchability. It's especially good for making actual loaves of bread, baguettes, etc. All-purpose flour will create a tighter crumb; it's also a great choice in roll recipes that require more butter and sugar, which both make a difference in the final texture of the bread when baked. King Arthur actually has a really great article about whether bread flour really does make a difference when baking bread. I encourage you to read it if you'd like to learn more.