Since we've been getting a lot of "what comp is best for us?" or "fix my raid comp" type threads, I thought I'd bring them all together into one giant compilation. Feel free to post a comp for critiques / suggestions, or help others fix theirs.
A good place to start looking at optimizing your raid comp is the tool here on MMO-Champion:
It's also a great way to link us your particular setup (via the "link to this composition" button).