"I can hold international 175, but I get a better schedule and seniority with domestic CRJ200" -said in southern Delta Captain drawl

Does it matter? As far as resume goes, I'd say the 170/175 just for the purpose of the 170/190 type. Lots of 190 jobs overseas. Even may give you a bump with American/Airways and JetBlue being already typed in one of their jets.