any aps higher than 2.50 is good( 2.86/3.33/4.00/5.00 ) full r8
2.50 is the average point where u can deal damage and win fights, but u cant destroy ppl
2.86 is equal to 3.33 if u know how to play, considering that if u get any stun, 2.86 is enough to slaughter target, aswell for 3.33
3.33 just gives an advantage in some cases for hiero bugs/barb/wr fights
overall 2.86 aint that different from 3.33 if u know how to use it
on topic : r8 full > dragon top by far
dragon top is good for pve if u aint demon to get aps speed enough high in order to spam the sparks on bosses and such