I've always wanted to know the Attack Rating(AR) of my pets so I did a little research and here's what I found out. Its kind of an indepth subject (as I found out) so I've broken this up into three sections:
1) Main Pet ARs
2) How I came up with these numbers
3) The new slayers
Main Pet ARs
These are some random main pet(I haven't had a chance to collect data for them all yet but I'm working on it )
ql 25 Flawed Android: 98
ql 46 Feeble Gladiatorbot: 194
ql 79 Feeble Guardbot: 352
ql 97 Guardbot: 432
ql 112 Feeble Warbot: 487
ql 160 Common Warmachine: 600
ql 178 Semi-Sentient Warmachine: 566
ql 184 Decomissioned Wardroid: 604
ql 187 Reactivated Wardroid: 607
ql 200 Slayer Guardian: 623
Slayers (These use a "SL Low" Weapon at the pet's QL)
201: 1553
205: 1750
209: 1952
213: 2328
217: 2576
220: 2468 (in the 15.8 patch this will be corrected to 3068)
Mechdogs (These use a "SL Very Low" Weapon at the pet's QL)
100: 890
180: 1273
203: 1729
207: 1930
211: 2300
215: 2353
219: 3119
How I came up with these numbers
This part contains a lot of math so if that sort of thing hurts your brain you might want to skip this section
Its been known for a while that every 400 points in AR(ie AR/400)adds 100% to your current weapons damage. This translates into
MyDamage = WeaponDamage(1+(AR/400))
With some quick algebra we can turn that formula into this one
AR = ((MyDamage/WeaponDamage)-1) * 400
With me so far? Good
Now we need to figure out Weapon Damage. Its easy. Our 1-200 pets use a Engineer Pet Right Fist and Engineer Pet Left Fist that are the same QL as the pet itself.
Next we need MyDamage. We need a good constant number for this.
Luckily for us whenever you critically hit something you do full damage so this gives us a good constant number to work with. I had each of my pets critically hit a leet for this experiment.
This system of critting a leet and then looking up the pet's damage in aodb worked well until I tried the new SL pets which is what the next section is about.
EDIT: I'd like to thank Haxukthx for providing numbers for the 215+ pets.