Both are awesome, and it comes down to preference really.
The Bradley is more EDC friendly than the Contego. I ended up selling my Bradley because disengaging the liner lock was annoying, but everything else on the knife was spot on. Fit and finish was right on the money and it just felt like it could do work, but at the same time retaining the ability to be a classy blade. The carbon fiber handle was beautiful looking and provided some sort of weave like feeling grip. The blade was perfect and thick enough that it could handle some tough tasks, making it much different than most spyderco FFG knives. A well executed production knife if you ask me.
Now, the Contego is gruff and grippy. Its larger than the Bradley and also weights a few ounces more coming in a 5.8 oz. I love the blade shape, it's sort of a bigger version of the Benchmade 940 and Rift, which makes sense since all three of those are Osborne designs. The g10 is like glue in you're hand, and once you get to using the blade it's not coming out. Some like the aggressive grip, I had to sand it down a bit. It definitely not as versatile as the Gayle Bradley, but great for hard use tasks.
I ended up keeping my Contego because I like the axis lock and its light weight for such a large size. I wish I kept my Gayle Bradley now that i think about it. I just wish they made a cut out near the liner to make it easier to access the lock.