I think accents are very interesting - they differ in pronunciation and also stress.
I agree.  What do you think is the most common accent?  I like Italian.
I'm not sure, but it is interesting how certain accents are easily identifiabile.
That is true.  Do you think a mexican accent is common?
Accent (sociolinguistics)
In sociolinguistics, an accent is a manner of pronunciation peculiar to a particular individual, location, or nation. An accent may be identified with the locality in which its speakers reside (a regional or geographical accent), the socioeconomic status of its speakers, their ethnicity, their caste or social class (a social accent), or influence from their first language (a foreign accent).
Accents typically differ in quality of the voice, pronunciation and distinction of vowels and consonants, stress,
"We had an initial thought that we didn't want to do the 'Boris and Natasha' cliched accent because the Russian accent can turn comic very easily. At first, we thought that maybe we would have people do these sort of vaguely Eastern European accents - not really strong but noticeable. What we found very quickly is that actors will act accents. They will not act, they will act accents and we were losing everything about these people that we loved. Honestly, I think after maybe one or two