imo, Imp Bloodrage is the best of the 'filler' prot talents, which I consider to be Imp Bloodrage, TM, Imp Sunder, Imp Taunt, Imp Shield Wall. (The other talents are either bad, like Imp Revenge, Imp Disarm, Imp Shield Bash, or essential).
Anger management is also better in that it works out of combat, so it saves more of your rage for the next pull, and works well against trash and bosses, while heroic isnt as good on trash.
Also works when you are stunned, crowd controlled, feared etc. and can't shoot off a Heroic. In other words, gives you a touch of rage just when you need it the most.
I generally prefer 2/3 Heroic and 1/1 Anger Management over 3/3 Heroic for that very reason. Well, that and I like having my rage bar crawl downwards instead of drop, but that's emotional, not rational.
I think Anger Management was chosen over the other point in Imp. HS for the simple fact this was more of an all-around spec. You'll be able to gain a point or two of rage when pulling, etc. which in the bigger picture is saved by Imp. HS, in practice that point is needed earlier than after the fact.
EDIT: oops, didn't realize there were like 2 or 3 pages, only read the first one, =0
...wow... replacing the point in anger management and putting it on imp. hs... and u get my exact same build......... 0_0
the point in TM is because u need that one point to advance on the tree... and thats the most beneficial place to put it on. you could potentially put it on bloodrage.. but 1/3 TM is bad enough already. i like being versatile and stance dancing is in great part where that versatility comes from.
2 points in demo shout means the mob's AP is reduced to 0 (or the AP bonuses that multiply for the specials or some such thing). the magic number is.... -442 ap, if my memory serves me correctly (which i think it doesnt v.v; )