My personal yoga practice has taken me on quite a journey. At first it was all about the flows and the sweat and the power, and slowly it has evolved to include a lot of yin and deepening work. In my opinion, neither one is "better" than the other, rather, they complement each other. The deep yin work really opens up the joints and promotes flexibility, which will come in handy when I'm going into scorpion pose or some other strength-based pose. It's all about balance for me.