Wayne,
I chose these over the Salons due to cosmetics. My wife didn't want the Salons. I trust that we are at a level of performance here that we have to next choose what best suits our life, as the compromise in sound is marginal at this point.
Once that E-Tron GT hits the streets I may switch to an EV. Had a P90D that didn't do much for me other than a few quick bursts of obscene speed.
I use these in a 16' x 18' x vaulted 16' ceiling area that opens to a kitchen, sub-optimal for speaker placement, for sure. In this space, I'm using a pair of SB3000 subwoofers <50Hz, only because I cannot get the bass tamed from the Revels with Audyssey on a Denon 4520CI. I simply turned off Audyssey and used the XO in the Denon and SVS DSP. I certainly do believe the 328Be's have the output to allow me to remove the subwoofers, once I get some better audio processing with the NAD M33. I'm not certain that would be the case with the F228Be's, but unless you are trying to compete with a dual subwoofer system, I'd suspect you could get away without subwoofers from either set of towers.
I have to say though, in a large room with tall ceilings, the proportions of the F328Be are just 'right' to my eyes. Along with the smooth front baffle (rear port), I believe the larger 328's have subtle but meaningful cosmetic improvements that have value to some buyers.
I have both HDI-3800 and the F328Be, so my reference here is slightly different but I feel that the Revel stands up very well to the liveliness of the HDI. In comparison to my now very old F30's, the Revels are young and fun. I think the 328s bring as much 'fun' bass to the party as the HDI's, especially on something like La Grange, they made my giggle that a reference-type loudspeaker was so engaging.
Stage/Space, my feeling is that the 328s are a good step above the already good HDI, they are simply invisible once placed and continuously impress me as I play new music. The HDI's don't project/present such a sense of space and depth that the Revels do ... but I have to admit I didn't give the HDI's as much time and placements as I have now with the 328s.