True, there's been a couple of filler arcs that probably doesn't suit too many - I liked them but that's me, and I agree that Bendis is taking on too many new characters lately without developing them enough, I find them kinda repetetive as well.
So while I don't agree with the original post that it keeps getting better, I guess, my point was that I personally felt that both hobgoblin and dumped (or maybe you cound that as one arc) was very good, and that the current one looks good as well so I don't agree with the fact that it's getting so much worse either.
My least favourite arcs are venom, carnage, dr strange and stolen identity, which is a mix of somewhat early, middle and late, so I guess my point of view is that he is holding a mostly steady quality in his work.
But I agree with your point about it becoming somewhat repetetive, I wish he'd spend more time developing some of the chars more fully. Or at least mention wtf they are doing.