Back to the original question... I used to find Rich Silfverberg's photos really striking. He has a couple of shots I want to do: two Chicago cops laughing at a kid who's in some kind of distress, and a Hispanic couple (he looks like a thug, she's motherhood incarnate, their kid... very cute) he photographed in LA. I also like FrankS's famous photo of the couple walking away in a snowy landscape, and Todd's pic of a kid by a river, taken with a 'cron 90. Oscar (Taffer) has a number of really striking shots (a girl walking by a door, another smiling in Plaza Catalunya. the flame-eater and a human pyramid). Graksi's galleries are beautiful, and so are those of Eastern-European peasants (can't remember the poster's name).
I have some filed as my favorite shots. I look at them from time to time, but must admit to not visiting the RFF gallery as often as I should.