Always interested in input...
I used to pack Rocky Mtn Low gaiters on most trips then tried others including Dirty Girl and now tending not to carry any gaiters except in snow/winter. For wet trips in shoulder seasons my rain pants keep most moisture out of my boots and in better weather I sweat so much in gaiters it seemed counter productive.
As far as keeping sticks, rocks, etc out of my shoes, I tend to wear light ankle-high boots (for that purpose rather than ankle support) so that is less of an issue and a relatively low level annoyance compared to the gaiters themselves and the heat they generate. I have light hiking pants that also keep crap out of my boots most of the time if I'm not in shorts, which I wear less of these days to keep ticks off in warm seasons.
There are as always exceptions to these approaches but that's my general approach right now. Thoughts and approaches from the Trailspacers?