I have been told by a friend who has looked through both for a long enough period to tell the difference that the 22mm had a better image. Unfortunately I can't verify this because I have not hand the same opportunity myself.
The theory is that there is a limit to the AFOV that you can fit in a barrel for each focal length. I have a list of these, but not with me at the moment. The next eyepiece up the chain is the 27mm and it is a true 2" eyepiece. So somewhere between 24mm and 27mm it gets impossible to get the FL into the 1.25" barrel and still keep the AFOV or image quality.
Some people think that you should never buy the longest focal length eyepiece in a 1.25" barrel set because the manufacturer tends to try and squash it all in so to speek. But I trust teleview not to have done this.
Quite often the longest FL eyepiece is the best seller in that (1.25") barrel size so maybe TV would have had the reason to go the extra 2mm. Anyone with a 2" focuser would have a longer FL EP in their set anyway so would most likely skip the 24mm EP.
It's up to you really. I think the quality of the whole series is excellent and would expect that you would not be able to tell the difference...umm...I don't know.