PS Audio Ultimate Outlet vs. UPC

I am thinking of adding some power conditioning back into my system. I used a HC UO in the past with good results. I have 4 components to hook up, Simaudio CDP, Simaudio i5, Sony DVD and Samsung DLP. I am wondering which method is the superior sonic choice:

1. UO powering my simaudio CDP and sony DVD
HC UO powering my i5 and samsung

or

2. all 4 from a single UPC

I look forward to any comments/suggestions, especially form anyone who has compared the UO and UPC head-to-head. Thanks!