Bigger drivers = bigger soundstage


Ideally, I don’t like to be aware of a speakers location in a room and like having sound being well centered for tv/movie listening.  I have two listening rooms and the one with larger drivers (older) fills room so much better vs better speakers (newer) with smaller drivers.  Room acoustics favor larger driver speakers.  
Seems dispersion is better.  The larger driver speakers do not image as well but very enjoyable to listen too. 
So now I am upgrading the smaller driver speakers to better and larger driver speakers and it follows a larger speaker cabinet also occurs.

all speakers herein are from same manuf. 
emergingsoul
 Room acoustics favor larger driver speakers.  


That's a loaded statement, what specifically are you saying? 
"...The larger driver speakers do not image as well..."

Your post obfuscates at minimum.  We have no clue unless you tell what you are running. 
The larger the driver the worse the dispersion. That's basic acoustics. Only way to change that is with acoustics lenses.

Then again you have two different rooms so the discussion has hit its end.
" The larger the driver the worse the dispersion."    

The larger the driver the NARROWER the dispersion.  Narrow dispersion can be better, it depends on the application.  

Duke