As a photographer I never trust pictures. LOL. Are these video captures?
Can you explain the idea of BENT. What bends the plane line? The hand path? Seem to me that the clubhead travels in an orbit that intersects the plane line at one point, the ball, and would not be an indicator of wheather the plane line is straight or bent.
#2 looks like Ted Tryba to me. I think #8 IS Tway.
I think some learning could occur with this discussion... if it is done carefully.
Maybe some further discussion(pictures) of the #3 Pressure Point and Sweet Spot being on Plane would help start things off.
The first two guys are obviously much different than Mac. Tiger looks similar, but his Sweet Spot looks different than Mac's. The CLUBFACE on V.J. is a little hard to see here.