Though I do agree with much of what you say I still disagree that the big boys sound better than the 2's. But each one of us is different. I have tried all of my SDA's on the same equipment with thw amplifiers varying from an integrated Marantz 3250 to a Carver M4.0T with several others in between, passive bi amped in some cases. I have also used them in different rooms but tried all in the same rooms. The smallest being 13ft x 10ft x 8h and the largest 28 x 16 x 9 with several open archways and a hall. I have the 2A's, 1C's (actually tried 2 different pairs of these), SRS, and 1.2TL. When it comes to power handling and massaging my male ego, the SRS and 1.2's win hands down definately. However the 2A's have come out on top in each case for overall tonal balance and percieved bottom end range as well as detail. The 1C's are the weakest of all I have heard in my system or others. The SRS and 1.2 TL's definately surpass the 1C's in all areas but still are not quite as pleasing to my ears as the 2's. Overall I listen to the SRS more than any as they show off well in the main living room and sound great, but if I had to go with only one pair of SDA's it would be 2A/B's.
I have described it before but believ the reason for my choice comes down to several things; #1 the cabinet volume/ driver/ passive surface area. #2 the number of drivers is kept to a minimum reducung time alignment and phasing issues between the multiple drivers. The SRS and 1.2 do have the progreesive point source tweets but do not have any such characterisitc with the mids/ bass drivers. The human ear can detect the arival of the same sound from different sources at differing distances from the ear. With the SRs and 1.2 this creates a minimum of two arrival times even if your ear is perfectly situated in the center of the drivers but usually 3 or 4 which muddy the sound even more. #3 flexibility; the smaller ones will work in more situatuions. This last has nothing to do with sound but as I age I may very well have to downsize as many others have to do and not only are the 2's easier to move but will work in more situations.
Again this is my take and I speak for no one else. I hear what I hear and have no clue if anyone else hears the same thing the same way. We all have a different hearinfg response jsut as speakers differ in the response curves. For me I prefer the 2A/B's then the SRS, then the 1.2 next would be the CRS with the 1C a distant last. I would take those if I had no other SDA's but do not prefer them in any way. I have my current pair in hopes of one day finding some passives for SRS 2's ans building me set of those. I have also not yet heard the 2.3 or 3.1 and make no judgement on those.