I would agree with what others have said,go with what works for you. I dont like riding with a backpack because it is simply uncomfortable for me. The weight always feels like it is sitting on my back and shoulders the wrong way. i feel restricted when i move around between the drops and hoods. The messenger bag i have fits me well and is really comfortable. Panniers are a great way to carry a load, but if i am going on a ride with several stops i dont like taking the time to take them on an off, id rather just take the messenger bag. I thinks its really subjective, go with what works for you.