[vinay427]

> If anything, the roman alphabet is simpler than the syllable based Devanagari.

Sure, until you need to figure out which of the four phonemes a letter corresponds to which is very difficult for foreign language learners of Hindi, as it can be for English. I am a native English speaker but I picked up Devanagari in a day or so because it's actually relatively consistent due to the phonetic syllabic nature.

[davidivadavid]

But that problem is entirely due to English, not the roman alphabet. Same in French. No such problem in German or Italian.

[vinay427]

You would need quite a few diacritics to map to all of the Hindi phonemes, especially including loanword phonemes (/z/, etc.) I'm not saying this is bad, but it's not the easy solution that it was made out to be. Meanwhile, Devanagari handles consonant and vowel phonemes quite consistently as others have pointed out.

[geon]

Swedish has a few redundant "ch" sounds; k, sj, sch, skj and tj.