combat stats, proc rates, and a lot of questions

[Snaggles]

I considered parsing the same delay 1hb and 1hs (like splintered club and rusty short sword) with my ranger for this same curiosity. Offhand swings in general are quite a bit less unless you have a slow AF mainhand. It's part of the reason with the upgrade to 2h on blue (scaling dmg bonus via delay) you better have amazing 1h's to consider them for dps. At least comparing apples to apples.

Proc rate is PPM as you mentioned. MH will proc twice as much on average but as Allishia said random is as random does. No weapons proc more than others. Slow weapons will have a higher proc per swing average though (earthshaker etc) but if you time it per minute they wont proc more than a quick weapon. On average.

White aggro as I understand is possible damage done which includes your damage bonus. Basically dps minus the actual dps. The prob is most the best dps 1h's have low aggro procs or none at all so it's something to consider. The Feverblade is one of the few that strikes a good balance.

Edit: All weapon proc rates are normalized on blue. Most aggro capped (relatively) for spells you cannot cast. Some are flagged non-pet weapons like the Earthshaker and weighted axe.