What language do you find it to be the most interesting?

French and Madrin.

Any African language

French. It's the most beautiful sounding language in my opinion.

Body

German is beautiful when spoken slowly - very expressive. I love the way you can squash words together to create new ones.
Most beautiful sounding languages for me:
1. French.
2. Irish Gaelic.

I'd say it's Hebrew or Arabic but I think Portuguese sounds a lot better.

Xhosa. Heard in southern parts of Africa. Fascinating to listen to.

Any language I don't already speak. :-D

la langue francaise

Pig Latin

Binary :D