Look up the history of the Tennessee Valley Authority. The most important reason for TVA was to stop catastrophic flooding in the Tennessee river basin by building dams to make reservoirs to hold the winter and spring rains runoff.
search
chattanooga flood of 1917
and look at "images"
So get this in your head. TVA draws down the water levels in the lakes to absorb wet season runoff and prevent catastrophic flooding downstream. They always do it, every year, the same for each lake. And the depth of draw down varys from a few feet to YUUGE!
Some are drawn down from summer pool levels "catastrophically" ;-). For those who bought on Norris -20 feet, Douglass -40+feet, Cherokee -25feet. People buy lake lots there all the time and move after the first year. Depending on where work is I wouldn't choose any of those three unless I had to.
I grew up a river rat on Watts Bar -4feet). I could chuck a rock out my bedroom window and hit the lake. Summer or winter. Winter provides some of the most beautiful times to be on the water. Watts Bar "south of the river" (meaning where the Tennessee and the Clinch rivers come together) is beautiful. Look a a map. You'll see the Tennessee river turns south there. For a home, I like the east side of the river, down River Road (Hwy304). The west bank requires a lot of driving depending on where you work. Meets all your criteria except a view of the Smokies, which you can have, but you get a ridgetop lot and keep your boat in dry storage or a slip.
If your lot has to be on the water- which it should, with a deep water pier:
Watts Bar, Melton Hill. Fort Loudon and Tellico Lakes. Loudon & Tellico are connected by a channel and have the same lake levels, but also have a shallow draw down -6feet. Kingston has a pretty good school system. Oak Ridge has a very good one, as that's the "Secret City" of the Manhattan Project. Melton Hill Lake -4feet has some nice spots.
While Norris, Douglas, Cherokee Lakes are of course beautiful when the water is up during the summer, the huge, and I mean YUUGE! drop in winter for flood water runoff protection (one of the original and the MOST important reasons for TVA), ruins them for year round living on the water in my opinion. If you choose one of those, save money and get a ridgetop lot instead of a waterfront lot in a planned community. You'll have dock access, and maybe the Smokies view.