logographic languages still win I guess, a 4-byte chinese character beats a n-character English word for that same concept.

but yeah, anything alphabetic yet not latin gets the worst tradeoff.

Most CJK characters are 3 bytes in UTF-8. But then most English words translate to more than one character, so 5 bytes might be more realistic (apparently Chinese averages 1.6-1.7 characters per word); for comparison English gets like 4.7 characters/bytes per word on average.