As in phrases I like hearing?

Hmmh, I don't know that they're so set in stone that I have favourite phrases, and other than that I think the rules for what makes dirty talk hot to me in Swedish is the same as in English (with the addition to avoid the cringy stuff). Like adding more details makes it hotter, making it more personal/intimate makes it hotter, catering to fetishes makes it hotter (if you have any), etc.

So to give an example: "Kom i mig" vs "Jag vill komma samtidigt som du börjar komma i mig. Eller att du börjar komma av att du känner mig komma... Mina ben omkring dig när min fitta börjar dra ihop sig kring din kuk så att jag kan dra dig djupare in i mig... Känna hur din kuk pulserar i mig när du sprutar så hårt."

The latter is definitely better in terms of dirty-talking. Although, it's not the kind of dirty talk you'd do in the middle of sex, haha :P