People need to talk in a more medieval/renaissance fashion, even if it's stereotypical "Ye olde english". I'm really tired of RPing with elves that use American English with modern day colloquialisms.
High elves generally impress me with the fidelity towards purple prose boast-speech. Same with strelts and their raevir. Basically any accent carried out in RP is enjoyable to RP with in my opinion.