I agree with ALMOST all of what spidermonkey said.
The one point I would take issue with is that I think the T-stiks provide MORE control than the Wicos.
The reasons I would give the nod to the T-stiks are that they have a shorter throw on them, and are very distinct in hitting the diagonals.
I bought a pair specifically FOR Crazy Climber because my Wicos felt really sloppy on it.
You really need the 8-way to do QUICK diagonals.
It is possible to move your hand right, THEN up, with a 4-way; but moving it right AND up at the same time is quicker, and will get you out of jams once you are comfortable with it.
I agree that there are some inherent flaws in the controls.
These are not a function of the stick used, but are in the program itself.
The big trick to going sideways quickly is that your hands need to be spread first.
If you get your right hand out, and have your left hand tucked to your body, you can hit a spot where you CAN'T go right because it won't let your left hand move.
When this happens, try moving your left hand LEFT, then RIGHT.
There is a certain feel to moving quickly on Crazy Climber that has to be learned.
Practice on the lower levels by moving quickly side-to-side until you are comfortable with it.
Straight climbing is where the T-stiks really shine to me though.
I miss alot less grips with the T-stiks, due to their short throw, and audible clicking.
The clicking helps get the timing set, so that you can really fly up the building.
There is actually a maximum speed at which you can move the controls.
If you try to move any faster with your swapping, you will miss a ledge, and your hand will go back down the building.