Depends on your conditions I'd say. If you're on heavier oil and play the outside I'd have to lean towards the domination, the extra skid/snap absolutely dominates the oil (fitting name)
If you're a medium/oily condition the shift is definitely the way to go. Don't get me wrong, you can throw the shift on heavy oil, but I'd take a Domination over a Shift on heavy patterns any day
The good news is, you can't go wrong either way!