Elinchrom or Profoto
I haven't used the two you specifically mention. But I do use an Elinchrom 74" Octabank with my Profoto strobes. It's a beautiful light and very even across the surface. I imagine the two you are looking at will also be pretty even. The Octa is reasonably well made, though I've only ever used it in studio environments, so it's never been subjected to harsh winds/etc. It folds down fairly compact, but it's still a beast to transport.