Personally, I'm also not sold on putting more than 1 point in Battle Cry enough to just advance the tree. Those two extra points will get you the 100% free Scream which is great while leveling but in Boss Tanking situations it's pretty useless since you will just get that one leap. So, you use 2 points to get a 1 free scream per a boss encounter. I find that with a Saber Throw, Leap, Scream, Sunder, Crushing Blow, Retaliation I'm not hurting for rage. I kinda like this...
http://www.torhead.com/skill-calc#101dMGcubrouRZhGM.1