My feeling as to what distinguish good writing from bad is more that good writers say what they want. Bad writers say stuff they didn't mean to, say stuff that other people want (cliches), or say nothing at all (obscurity). So in my eyes, there's no distinguishing textual characteristic of good writing. For instance, while I generally agree with you on jargon, David Foster Wallace uses jargon in a way I really like, and think is pretty central to what makes his writing good.