SR on Brutes is the best SR
It has the correct level progression, allowing you to get all the positional toggles early.
It has a Taunt Aura.
It doesn't waste massive amounts of DEF like the tanker Version.
As to building it, Make sure you get both of the +DEF uniques in as early as feasible. My preference is to slot them in Tough.
You are also going to want to get your Endurance situation under control since you have no in set tools. Performance Shifter, The Health stuff, etc helps also.
I never worry about any Resistance other than S/L on DEF sets. Even my SR tank has no attention paid there.
My SR Brute was a Claws/SR and was quite a good combo. If you do get tagged a bit, relief was only a Shockwave away. Hop back a tick, then Knock everyone down and then you'll regen before you get hit again.