I have never thought any of my stories 'sucked.' (So I sort of find this whole thread odd, well from my way of thinking.)
I sometimes go back and read an old story and think, well why did I use the word 'saw' so much, or okay, really, couldn't I have phrased that better?
So I don't think I'm a perfect writer by any means. But I still love all my stories and all the characters. Perhaps I am in the minority on this.
I not only think some of my stories suck, I've written a few where every editor out there agreed with me fully, and sometimes in rather blunt language.
I not only don't love everything I write, I
know some of it is pure garbage.
Now, granted, many of these pure suck stories are experimental, come when I'm trying something that's not only new to me, but would probably be new to any writer. Now and then, however, a suck story is just like my good stories, except that it sucks front to back because I didn't do my job.
"Suck" I suppose, is a relative thing, which is why many of these stories sell quickly, but I'm convinced they do suck when compare dto otehr things I've written, and especially where they fall short of how they should have read had I done my job properly.