Which Cable Makes the Biggest Impact?

To all the audiophiles that have tried different power cables, interconnects, and speaker cables, which do you believe makes the biggest impact in your system in order of ranking? If you don't believe that cables/interconnects/pc's make any difference at all, and is all marketing hype and snake oil, you can vote accordingly, but my ONLY request is that you've tried different cables first!

Ok..My ranking:
1. Power cables - most important
2. Interconnects
3. Speaker cable