I'm sure linguists can chime in, but I hate in English (my language) that words that mean different things can have the same exact spelling - and the only difference is the context. I'm guessing that's not entirely responsible for dyslexia - but it can't help. Having taken a little Spanish, I've noticed it's also easier to identify verbs, no letters are silent, nouns typically don't share spelling with their verb forms, gender affects other words. There are a lot of helpers in Spanish (and I'm guessing french) that just tend to help people navigate words and letters better.