IMHO I recommend Belgrano or better Nuñez which hasn't yet been discovered by tourists and its a 10 block difference. U got Subway Line D and theres plenty of new apartments being built with young couples who flee from piquetes and demonstrations in downtown. Forget San Telmo that was 10 years...
I guess intestine would oversimplify it as we have both "Chinchulines" and "Tripa Gorda". We normally leave it as chinchulines.
Check this. Good luck!
http://www.proz.com/kudoz/spanish_to_english/cooking_culinary/1154709-chinchulines.html