Help me pick a strain

I am almost done with my first grow. They have a few more weeks of flower to go but I am already getting ready for number two. I have a 150 watt hps. Room isnt really an issue. (its in my closet) I want a big yielder but I also want quality. I want something that looks good and packs a punch. What do you think?

do you want indica or sativa? im growing purps and white widow this season. cant really go wrong with the widow