The snags to English are mostly the grammatical bits and those weird exceptions, like plurals and how I-before-E-except-after-C doesn't actually apply. I believe one of the trickiest bits is figuring out which pronouns are singular and which are plural - for example, 'all' is plural but 'each' is singular. I find myself constantly referring back to my high school grammar textbook.
Silent letters in English actually do make sense, except in the words "colonel" and "Wednesday".
I doubt we're the only language with odd plurals though, like French's al -> aux. I mean, English doesn't even have a future tense technically, so its a bit easier in that regard. If an English teacher were to tell people that I/E/C rule actually applies, they shouldn't even be teaching it...
I don't really get what you mean - as in "each of you" is wrong?
French's silent letters aren't thaaat bad, mainly its just -ent at the end of a verb. I know duvet/ballet are from French but it's just that they pronounce "et" differently to us, not so much a silence, since neither "e" nor "t" alone make an "ay" sound. Colonel always got me though, and subtle. >_>