Breathe Cage Pro's: UNITONGUE, great durability (lasted me close to 5 months without any midsole exposure), ventilation, and the max air. Plus, the outsole warranty the other two don't have really help. I actually wore my Cage II's down and bought a pair of 2K10's with my voucher.
The only bad thing I can say about the Cage II's is that they started showing some unusual wear- the dragon material started to tear away from the part of the outsole on the in-side of the shoe, nearest the ball of the foot (I have no idea what to call it). This happened on both shoes, and I guess I could've used some shoe goo to repair it, but I had none at the time.
This is where it separated.
I have no experience with the vapor series, although I definitely wouldn't mind getting a pair of Oreo VI's if I could ever find one....anyway, the 2K10's are great shoes as well. Pros: Ventilation, weight, wide, traction. Also, I got around to painting mine, they're such a great looking shoe.
Cons: Lack of sufficient cushioning for match play, in my opinion. These would be perfect if they had just a little more cushioning, especially in the forefoot. Also, durability was terrible, took maybe 2-3 weeks to grind them down.
I prefer the Cages, but that's probably my bias towards heavier shoes. But please let us know your opinions of the shoes when you try them out!