Hate to admit but I watched both subbed and dubbed. I'm not sure which was worse. But the subs added a pretty funny quality to it. Learned to deal with the accents after hanging out with some chaps from across the pond in the dubbed version though.D3monic said:
On the English dub I couldn't get passed the horrible chutney accents. Was like nails on a chalk board.
Assassination Classroom was a really good show. I would definitely recommend it.