Is it just a personal preference to pick one over the other or are there pros/cons of each? I'm thinking about picking a Kent comb or a military style brush. There are so many combs by Kent though that it seems hard to decide which to pick. Are there guidelines as to which of them suit certain types of hair etc.? If I go with the brush it can't be boar. Are there other bristles out there? Are they as good? If it helps, I have short to medium hair that is a bit thin and I have an Ivy League hairstyle.