I have not heard the Scorps but the scorp II (off the top of my mind) has aluminum drivers... either one you simply cannot go wrong.
The soundstage is warm and as described by my audiophile buddy it "Hugs" you, very true indeed.
If you are into the B&W or Focal type of sound then AP will show you the warmer side of audio with amazing imaging and reach.
The Celsius seems like a nice center but too expensive in my book for what a center does. I like the idea of having the Orbs because of small size and set up. The orbs will be crossed over at about 80 or 120 hz to my HSU sub, which will basically make it full range.
I think the most important part of a HT despite what people commonly say, is the L/R channel.
This is some good reading about the Scorpio II Click Here