Assume 2000 RAP on top of 110 base DPS and 20% crit (with 30% extra damage on crit).
You would get 253 DPS before crit, 319 DPS after crit.
With 35 agility you get 255 DPS before crit, 324 DPS after crit (extra 2 DPS from AP, 0.875% extra crit)
With 70 AP you get 258 DPS before crit, 325 DPS after crit.
Assume 3500 RAP on top of 140 base DPS and 30% crit.
390 DPS before crit, 542 DPS after crit.
With 35 agility, 393 DPS before crit, 550 DPS after crit.
With 70 AP, 395 DPS before crit, 549 DPS after crit.
As you can see, overall the difference is negligable at best. 1 DPS difference in the 300 range is less than 0.33%. I would say if you're BM go AP because AP scales to your pet (so does your crit but if you're BM and dont have BD anyway your focus should be fine within that range). I didn't factor AP gains from MM build or Agi gains from SV build into the equations, but you can assume how 10% more RAP or 15% more agility would boost it in respect to the different stats.
I still stand - BM or MM go savagery, SV go +35 agi.