Alright. I got to to some demoing. I was abe to put the Ampeg BA210V2 with the Ampeg PF210He cab against the Fender Rumble 200(c) with the matching rumble 115 cab. While they'e both loud, the Ampeg is significantly louder when both are put with a matching cab set. Alone, and this surprised me, the Rumble was louder. Come to find out the Ampeg is only pushing 283w when not plugged into a cab and the Rumble is at 140. But that extra 167 watts and little bit of extra speaker surface really does a lot for this amp.
As much as I'd love the Rumble, the same amount of money gets me a louder rig and I'm going to have to go with the Ampeg. I haven' put it up against the 500 asy demo was more about raw volume and tonal quality into the upper registers, but I'd imagine the 500 would knock this thing around but the price point is steeper.