Appreciate all the advice so far. I should probably clarify a few things:
In general, I don't mind cleaning my guns. I actually enjoy cleaning a new gun for the first time because it's an excuse to take it apart and study its inner workings. After that I can't say there's much enjoyment, but I still clean religiously because I feel it's the best way to ensure reliability and maximize longevity, both of which are important to me. It's fair to say that most of my guns spend more time being cleaned than shot, and most of my barrels have had more brushes through them than bullets. And that's not a complaint -as far as I'm concerned it comes with the territory.
All that being said, the time it takes to clean a revolver cylinder to my satisfaction is a bit much even for me. Perhaps I should mention that all three of my revolvers are rimfire, which is dirty, and two of them are convertibles, which means double the cleaning if I use both cylinders.
The raised carbon ring that forms at the case/bullet junction is the biggest problem. I have to believe that will cause loading and extraction problems before long, and I've always heard that carbon fouling is much easier to remove when it's fresh, so I'm not inclined to let it accumulate. I find it takes a long time to brush that ring away. Granted, I'm using regular bore brushes, but at least for 22LR they should be the same diameter, right? Bore snakes save some time on single actions, but in my experience they snag and get caught on double action extractors.
The chamber brush in a drill method sounds appealing. Failing that, the flared case scraper would probably work well too. Incidentally, that Brownells multi brush tool is exactly what I had envisioned. Too bad they don't list any for rimfires.