Actually, while I find rewriting irritating, boring, and completely and totally mind-numbing, it is easier in certain ways. The act of writing - which is exciting, fun, enriching, and filled with adventure - might feel more rewarding, but it IS hard work, attempting to communicate a thought coherently, when my brain is such a roiling and seething mass of illogical meanderings. Editing is merely the cleanup afterward. Necessary, but boring. the only really difficult thing about editing... is forcing yourself to do it.