Here's my take with stiffest at the top, softest at the bottom:
Garbones
196 Bibby
190 Bibby
Belafonte
Jag Shark
Tahoe
PB&J
And to answer, the 190/196 Bibby is by far the stiffer, more big mountain charging ski. 190 Bibby is fully rockered whereas the 196 has a more flattish tail and lots of taper. Still a surprisingly quick ski in tight spots, but this was made for straightlining 2k shots.