russian, italian, japanese (when actually speaking japanese) and any accent that sounds good singing bawdy bar room ballads.
Russian, Japanese, Irish/Scottish/Midlands England (old girlfriend thing, so sweet sounding), Spanish, Some NYC accents
Definitely Russian/Ukranian. They always sound so angry when they talk. So cool. I always like our accent too *Ojibwe*. You would have to hear it to understand.