Our winter isn't often terribly cold, but my fingers still get a bit stiff or numb. I found that quite often with the lever locks, my fingers would get bruised with the levers. Not so with twist locks.
Another problem with the levers is that I had to keep adjusting them for two reasons: a) as the temperature changed, so did the tension on the lever locks (the coefficient of expansion for aluminum is not the same as for plastic). b) the diameter of the aluminum legs is not always constant, and while the lock may be tight when fully extended, it would often slip at an intermediate position.
The twist locks take very little torque to keep them from slipping, and of course never require adjustment with a wrench or screwdriver (actually every time you use a twist lock, you are adjusting it).
Unfortunately, my Explorer has lever locks to position the angle of the legs.
G