One question to ask is whether 165 mm is the right length crank for you, which depends on how tall you are. If 165 is proper for you, then either crank will work for you. If you are 5"6" or shorter, you may want a shorter crank. There is a discussion in one of the threads in this forums.
If you need a shorter crank, then you may have to go to something like a Rotor crank.