I've always used the stock compressors in Logic, but I just bought two waves compressors (the CLA-2A and PuigChild), and my lord, they're so tasty. I can't stop using them. The Logic compressors are great, but I had no idea that a compressor could sound as awesome as these two. They're making me write songs differently just so I can use them I'm just seeing the typo in the title of this post. lol.