Yeah, because you can TOTALLY find a meaning behind Sinnoh in the english language, and it's in ALL the dictionaries these days.
And my tongue exploded when I tried to say Shinou. Seriously, it's just
that difficult a word to pronounce.
I don't see the big deal either way. They both sound almost identical when you say them aloud, so does it really matter
that much to you people?
Oh...wait. I forgot the whole 'Rukario' thing you guys had going on. Ahh well, whatever sounds betteru to you I suppose