Name a character or pairing I know and I'll tell you what cliches, kinks, or tropes I'd write for them.
If you need a primer/reminder, you can pretty much look at my fic, my bookmarks, or my userpics to see what characters and pairings I adore. (Which is only half-true for SGA, btw. All pairing icons there are purely incidental, except for that one adorable chibi John/Teyla.)
Also, happy birthday, kindness_says! Awwww, my Kat is growing up.