Have you heard of the "Blog Edit Minion Beta Suggests" page yet??
Just check out http://editminion.com/ and paste some of your writing in their box, then push EDIT. They'll tell you if you use an adverb, weak writing, passive voice, too many "said" replacements, or preprositional endings.
I checked the first ten chapters of my story (only one chapter at a time though, don't want to overload them) and it appears my biggest faults are adverbs, ending sentences with prepositions, and passive voice. Here's what my results looked like.
Did you learn anything about your own writing by trying it??