I've got both a spike kettle and a CF10 fermenter. I had to go through the "what connectors" process as well.
I've got a combination--camlocks for a lot of things, and Triclamps for others. The reason for camlocks was threefold:
1. At the time, there didn't seem to be the variety of fittings and such for the hose disconnects such as from Spike as there was in Camlocks. I think that's gotten better, but there's a ton of stuff in Camlocks.
2. Camlocks are cheaper. The ones you note above cost $20 total just for one connection. I found that just too expensive. For a Camlock, from BobbyM for instance, the male connector is $4.00, the female camlock 10.50, or less than $15. They are a little cheaper at BrewHardware.
3. I read someplace that there's some question as to whether the QD hose disconnects are interchangeable when bought from different vendors. Spike's prices on these are high, IMO, but more to the point, would I have to buy these only from one source to ensure the parts would all work with each other? I didn't know, and this was an issue for me. I have camlock stuff from at least two vendors, both work fine with the other's stuff. This was one of those issues where...the only way to find out is to buy stuff from multiple vendors and see if it is cross-functional or not. Or buy everything from one vendor.
On the flip side: the QD's are easier, IMO, to use. I've gotten better with using the camlocks, but they're still a little fumbly for me from time to time.
If you went with the QDs, I'd make sure I ordered them from the same vendor. They are pricier, but that is what it is.
