As a Brazilian fellow, 100% agreed. US international is the least bad compromise I've found. I can't say I mind the dead keys too much. And I do enjoy that all combinations are sensible (i.e. key for the symbol + key for the letter). Memorizing the (not quite random but not exactly 100% logical either) position for some of the diacritics would be very annoying to me.

I guess I don't mind it too much because the standard portuguese keyboard layout also rely on dead keys for accented letters, instead of having dedicated keys for them. (Or at least the Brazilian Portuguese layout does, not sure about the European Portuguese layout). So that's just what I've always been used to.