The choice between these three knives depends on the size of your hands, what you think of assisted opening knives, and locking mechanism preference. I have larger than usual mitts and love the Manix 2. Nice slicey blade design, good ergonomics, and a ball bearing lock (the others are liner locks). I have the Civivi Pintail in S35VN and it's a decent flipper, but just a hair too small for my hands to be regularly chosen as an EDC for me. I have a few assisted opening knives and I don't find the benefits of easier opening offset the harder closing. If you have tiny hands, the Link is a good knife, provided you like assisted opening mechanisms.