For Cat at 70:-
From Emmeralds "low" gear cat list (about 2.5k AP & 30% crit) 1 Agi = 2.3323 AP ====> 9 Agi = 21 AP
From Emmeralds "high" gear cat list (about 4k AP & 40% crit) 1 Agi = 2.8117 AP ====> 9 Agi = 25.3 AP
If you aren't level 70 then I would imagine your that the 32 AP will be worth even more compares to the 9 Agi.
For Bear, the Agi would be better as it helps with mitigation as well as DPS/Threat.