I ablsolutley love my Speedmaster. Ignore the CC difference, the HP difference and the torque difference, none of them are enough to really feel a difference. The absolute best way to decide btween the two is to sit on them both. The ergonomics are different for each bike. Get whichever one feels the most comfortable for you. You will not be dissapointd with either bike, they are both the best cruisers on the planet.
Soren