I don't really pay attention to scores, but as far as ranked goes I'm Platinum 3 right now, in promos for plat 2. The NA server instability has kind of curbed my will to play though lately.
depends ... i always focus at camping top , it's the most easy lane to gank , if the enemy top is lack of escape , like nasus , evolve w->e->r/q , if enemy have heavy cc , evolve r instead of q at last .
Since the W nerfs though you only evolve W if you are losing lane hard and need to farm. You still level q/w but you usually evolve q. To my knowledge.
The nerf was the W doesn't proc your passive anymore. The only benfit to evolving W is you get 3 spikes instead of 1 which is just not worth it.