While teaching pronunciation/accent, which is more important and why, Vowel or Consonant Sounds? Which impacts speech and intelligibility more?
I'm not an expert, but I would probably say the vowels because there are variations in the pronunciation. Although the consonant blends are also important, especially the ones that conflict with the native speakers natural language. It would be the blends that are difficult for the native speaker to pronounce; those that are closest to the native language and that the native speaker could default back to if not listening closely.
Someone else may be able to expand on this.