Vitali was probably the more aggressive of the two.
In my opinion this was the difference.

I find it odd that two brothers can move so differently. Vitali is much more loose, naturally displaying more athleticism and perhaps ability.
Wlad has worked hard, but remains robotic and there are fla3ws in his movement.

Vitali I feel was the better fighter, but I think Wlad will go on to achieve more.