okay, i'm a short guy. 5'4'', with 28'' inseam. had a road king with a fairing (essentially a street glide) before I owned road glides, so I think I can talk with some amount of experience here.
with the fixed fairing, you have more space in front of you vs the batwing fairing being 'in your face'. less claustrophobic and cramped feeling. this also means you get more rain in the face with the road glide.
the 13 and below (pre rushmore) road glides were even worse than the newer ones, the rushmores have moved the fairing 2.0'' closer to the rider, and the handlebars have a bunch more pullback, in the neighborhood of 5.5''.
no, the headlights don't turn with the fairing. but given the physics of countersteering, the roadglide headlights lean into the turn, while the batwing headlights point outward. yes, it's very minute but just a response to those who bring this up.
my radio is further away than yours would be. I can reach it fine when I need to. though most of the time, I use my hand controls. that's what they're there for.
where the roadglide shines is on the highway. while wind and turbulence by passing vehicles (esp. trucks) is minimized with the roadglide, while the batwing has those forces put right on the forks. we've been on rides where once we reach our destination, the batwing folks talk about how 'brutal' the wind was, while I didn't even notice any.
the difference in seat height between the two bikes is negligible and is attributable to the 19'' front wheel on the sg, vs the 21'' front wheel on the rg. in the past, the 2 bikes were identical with the exception of the fairing.
I would agree with the recommendation that you do an extended test ride on the rg. that will give you a good comparison/contrast to your sg experience. but, I would stress that you remember that that little tiny windscreen on the cvo rg will need to be replaced with a proper windscreen asap. that tiny little thing isn't even as tall as the inner fairing.
this road glide is my 2nd road glide. I knew what I was getting before I got it, so the reasons that I like it have absolutely zero to do with 'justifying' my purchase, and everything to do with why I bought this bike in the first place. but, roadglides are not for everyone. which is why they make more than one bike. and i'm happy with not everyone having one. I liked it better when there was fewer of us out on the road. there is a reason why they called it 'the secret society of the sharknose'. but that secret has been getting out more.