I would guess the HOB
filters with Bio-Wheels are easier to maintain, but since I have never worked with a canister style I couldn't give you a definite answer! Maybe post some more info about your tank i.e. Size, dimensions, plans for the tank ... FOWLR
or Reef and then some may be able to point you into the right direction.
Many people here don't use filters at all ... trust me, it was hard for me to grasp at first but it does work!! LR
becomes the main source of filtration, but I still recommend using some type of mechanical filtration!