1) Coosa Bass- Note that my experience with redeye is outside their native range on streams that have distinct segments (waterfalls) and are heavily spring/ground water influenced. If the water is low enough to wade (base ground water flows or close to it) , coosa feed aggressively. I am not sure if they bite readily because of the low productive of these streams (sandstone/bedrock) or due to warmer water from the ground water.
2) Northern Spotted Bass- Most of my streams have very few KY but I catch them every winter but rarely the rest of the year. This is the reason I believe they belong in the No2 slot, although I probably could be convinced that could be moved elsewhere on the list, especially on streams with denser and fishable populations.
3) Largemouth Bass- True homebodies that need to keep eating all winter long. Put it on their nose, and they might bite it. Catch one, their will probably be more on the same piece of structure. Once you figure the "pattern"; you can get into numbers.
4) Smallmouth Bass- Toughest to pattern. Winter hole is a misnomer, IMO. They do range farther than largies but they will only move as far as they need to. The best fishing areas for big fish have the spawning, summer, and winter area all in close proximity to each other. The more they have to move, the less energy they can convert to growth, IMO.
If you have the skills, float the river at extremely high flows and note any area that offers protection from the high flows (or ice flows), this will get you in the general area of winter areas. Finding the spot within the spot (swis) is much more difficult. The quicker the access to feeding area the better the swis. Also look for underwater ledges, undercut rocks, or other structures that may offer hidden "rooms" for protection. Islands and feeder streams can also add positive elements to the swis. Once you find a winter area, check out a topography map and look for similar spots on other segments of the same river or other rivers in the same watershed.
Lastly, loose lips sinks ships. Locations for big winter fish and everybody's ears perk up, also be careful with pictures that identify the wintering area. Be safe (winter flows are usually higher) and be patient.