This.
This.
And, as per the Dominator rule of slotting, you shouldn't need res/def if your opponents are successfully controlled. Plus, a tank is effectively controlling with taunt.
While more choices in archetypes and powers are largely welcome, I personally don't want to see the waters muddied any further and would like original concepts introduced. The Synergist is one such interesting example.
The problem with these middle of the road archetypes is they try do too much without actually accomplishing anything. Guardian archetype as case in point, Sentinel to some extent, although fixes have been proposed.