I've sampled M7 & Royal Oud, and I definitely prefer Royal Oud. But, I'll admit I'm not a huge fan of oud, and that's why I like Creed's scent. (because I get very little oud in this one). To me, it just comes off as very clean, classy, and formal (almost powdery/woody). I don't care for M7. It's just way to medicinal for my tastes. I tried it because of all the cherry and Dr Pepper references, which I like, but I don't get either. Just a very strong medicinal, syrupy wood note.