I'd go with the two 2200s, but then again I'm partial to
I will chime in here with one caveat.
If you are going to run the 2200 bridged then get the 3500 instead.
Parasound advises me that unless they are manufactured at the same run two 2200's may not sound exactly alike.
If Vertical Bi-Amping then it would work out OK and the 2200's might be my choice.
I have a 3500 now and it thoroughly outclassed the 2200 when I compared them.