But I hate the headbutt. :( I never feel like it's a good time to use it. Like...ever.
the W --> Q combo is very good
If you save your W for specific champions that need to be targeted in order to break channels, it can be used that way. Depending on the champion / channeled ability, it almost doesn't matter where you butt them off to, as long as you stop their channel.
As long as you don't headbutt their tanks into your carry, or butt their carry away from your team, you usually won't make a mistake with headbutt. Actually, sometimes I headbutt a key player caught out of position even further from the fight so that they can't do anything while we easily clean up their team. --- My Hubris is bigger than yours. NA - TheWorld7 & Tragedy Baby // PBE - Je Suis