Hi, i have both, bk rush plus and pbg sportwrap, for me, both have a lot of power, but i like pbg more because the rubber grip is more comfortable to grip when breaking. Powerwise, both are very powerful, it's just a matter of choosing the tip you use. for 10 and 8 ball break, i really preffer using bkrush with white diamond tip installed. For 9 ball with english, i use pbg with kamui sai control.
For me both are similar, it's just a matter of tip selection