Calgary is the "unicorn of CG" because nobody can seem to find it. For how prevalent and respected the Manitoba is on RFD, I think there was only ever one infrequent RFDer who gave their review of the Calgary.
Shame, because the Calgary was my first choice when I first became aware of the brand, followed closely by the Manitoba. However, when a size small Manitoba in black manifested itself on eBay for under $400, I jumped on it and nearly forgot about the Calgary. Once in a while though, I do see the odd Calgary pop up on eBay. I'd imagine the two, being siblings, are priced reasonably close together at retail, yet every Kijiji and eBay link I've seen for a secondhand Calgary seems to be hugely expensive compared to the secondhand prices you can get on a Manitoba.
The Edmonton is also a rare sighting. The only one I ever spotted is here: http://forums.redflagdeals.com/merged-o ... st14870136
The Loro Piana bomber is the D'Alpago (mens) or Aosta (womens). Or are you asking for reviews, given this is the review thread? I've only ever gotten my hands on a Como parka (also from the Loro Piana line) at Harry Rosen. Nice jacket, but I would never drop $1600 for it. Speaking of Loro Piana and Harry Rosen, I'm currently looking for a nice wool 3/4 length topcoat to wear over my suit, and I tried on a gorgeous, simple black one (Harry Rosen brand) made with Loro Piana wool that fit me like a dream. It was $450 after the Boxing Day promotion pricing, and didn't have surgeon cuffs, so screw it. That brings me to my next point...
Please do not wear a down-filled parka with business/dress clothing if you can help it. You should be wearing a wool coat as per the rules of fashion, fickle and fussy as they are.