They are both beautiful battery tubes.
The SB is a legend.
I picked the Omega because of the slightly smaller size, contour and the HD mechanical switch.
It fits perfectly in my hand and I don't have to spin it to find the button every time.
The switch is a little harder on the thumb, but its worth it, the ladies might have a problem with it.
BTW - A knotted elastic hair tie works great for a switch lock, it will never fire in your pocket.