The solution speed FF 2 is closer to the Mizuno as it sits up a little higher in the heel. The Speed has a narrower toe box and is slightly lighter & faster feeling. But overall, i think the speed and the exceed tour feel very similar.
The vapor Pro fits different. It's standout feature is it's low to the ground, stable feeling. The asymmetrical lacing takes some time getting used to but i feel very locked in with no heel slippage in the vapor pro. Of the three, the vapor pro has the least amount of "cushion" but i think it is the fastest, best performing shoe of these while playing. But i generally prefer lower to the ground shoes.
Durability wise, i would rank them 1. speed 2. mizuno 3. vapor pro
I manage a store and our most popular shoe has been the Mizuno because the fit is a little more universal and it has a ton of step-in cushion. no break in period. And for a while, it had a 30 day comfort guarantee. Can't go wrong here though.