The Quickclip takes some feeling out for some. Since it only has the one clip, you won't like having a heavy pistol in it at all as it will make the nose of the firearm dip down below quite a lot. The G26 shouldn't give you any attitude, just make sure you're wearing a quality belt, the belt tends to be a huge problem with folks going IWB.
Most folks I've talked to about Crossbreed tend to prefer the Supertuck. But even the ST has issues that bug some folks. Each holster Crossbreed makes has its quirks and just takes some feeling out to know which one is the most applicable. I've been using the ST for a long time and my only real complaint is the shape along the bottom. I have large legs and those ears on the bottom rub badly, but if I remove them it risks having the metal clips rubbing or poking my leg as well as can pull my clothing against the metal clips (don't know why, it just does).
One would be surprised (most of the time) that moving the holster just 1-2 inches on the waistband can make all the difference in comfort.
On to the good stuff! The Crossbreeds will allow you the ability to cant the holster in various positions. I've not attempted to put a Quickclip or Supertuck in a cross-draw set up simply because they aren't intended for that. But, I'd think the ST would be the most versitile for that application given that it has 2 adjustable clips. Since I have the ST at home, I'd be happy to configure it and try the application for you so you don't have to buy until you're informed.
If memory serves, the Quickclip only has holes positioned to allow for a forward cant or verticle ride.