Looking at the website I agree with Andy, it's nice that you can mount the panniers lower so if you wanted a trunk bag or a tent etc on top you could do it, so for opening up options I would go with the Super Tourist.
Also Bontrager makes a nice one called the Backrack Deluxe or Backrack Deluxe L (L stands for large bikes).
But depending on how much weight you'll be carrying you may want a better rack to help stabilize the load better on the bike to keep the bike from feeling like it's swaying, the Tubus Logo rack is so well built it will stabilize the load and the bike, or the ultimate is the Tubus Cosmo made of stainless steel and can carry up to 88 pounds. Those Topeak's, Blackburn's, Bontrager's and others are great for lighter touring gear at around 40 pounds or less. If this is a serious heavy loaded touring trip don't skimp on the rack.