Depends how much I need to haul and also depends in general how tall and strong one is. A smaller suitcase at 23kg is still easier to handle than a huge 32" suitcase even if they weigh the same.

For a max load I take the Rimowa 32" Multiwheel. It rolls on smooth floors with only two fingers on its four rolls. On top of that will be a duffel or Airboss style bag that I can take in the cabin or check. If am really maxed out there will be third, personal item style, bag which can be hung from a hook or simply shoulder carried.

Having two 24" wheelies for example is really unpractical, I find.

Till