If you want the best selection tool you will need to do it yourself with the Pen Tool. Little bit of a learning curve but results are worth it.
Ok thanks. But I'm not really having an issue with the selection, it is definitey selecting the pixels I want (and cutting them correctly). It is just that once pasted, it will never align perfectly, which makes the tool unusable for me. I just can't imagine that this is how the quick select tool is supposed to work. I just want it to cut pixels, and paste the same pixels, without modifying them in any way.