We visited Alabama, Clemson, and UGA.
My daughter was a NMF ('22), and we originally visited Alabama to check off the list. We went in with some preconceived notions, and UA exceeded those expectations in every respect. Despite the large enrollment, the campus lives relatively small and is walkable. It was well maintained (the best of the three you mentioned) and surprisingly scenic! IMO, the school does a great job of making a large campus feel small(er). The Strip and the downtown area are great for college kids. Plus, our official visit was the most organized, personalized, and professional of all of the public schools we visited. We were very impressed with all of the resources available to the students.
We also liked Clemson. We are from Atlanta so are used to living in an urban area. Although Clemson was under 2 hours from our house, it felt like a completely different world. It was remote and relatively rural. The downtown area is small, but the campus itself is well laid out with the academic buildings in the middle and residential areas on the perimeter. This made the campus walkable. The grounds did not seem to be maintained the best, and the campus was not particularly scenic. However, it was a top contender for a while.
As for UGA, it was my least favorite of all the schools we visited. It was huge - both in terms of size and enrollment. The engineering and Honors buildings are 1.8 miles from each other. Using the bus system would have been a necessity. Plus, the intro level classes were large! I left the campus visit feeling that everything about the school was impersonal. We are GA residents, and although my son would qualify for Zell Miller, he may not even end up applying to UGA. Also, the campus had some hills, and that made the campus feel very choppy to us.