Well Brat, aerobatics aircraft have different requirements I'd say. Most notably, they're far slower and have less requirement for stealth, so the aerodynamic requirements can be fullfilled almost without compromise. Plus, on aircraft with a single vert stab, it's rather strange to have that canted
For all I know the vert stabs on the F-22 are actually smaller in area than they were on the prototype (and I think you can see that looking at pictures form a similar angle), though they are further back.
If you're trying to yaw in high AoA / slow speed an all moving vert stab may be more usefull to enforce that movement, as in a conventional stab you still have that fixed controll surface part wich I imagine wants the plane to weatherwane back into the wind somewhat. I can't really say if it's better for yaw stability in other flight regimes, though.
Then again, the J-20 also has those vert fins extending down below the vert stabs, providing additional controll. So in the end, the total area might no be that much smaller than that of the Raptor's vert stab.
The YF-22 was the more agile plane I think, while the YF-23 was apparently more stealthy & faster, but also considered to be more high risk, wich is I think were the believe of "having settled for the F-22" comes from.
