Oh absolutely agreed, if items stayed the same the only thing what I proposed would offer is even less choice, because there's pretty obvious items for each slot that would end up being mandatory.
The reason I suggested all this in the first place is because I'm trying to look ahead, to patch 2.3, 2.4, 3.3, 3.4, ect and ect. We're going to eventually have all these legendaries, and still be stuck with limited options because of the limited slots.
How different would your example be if all those items you listed had 2-3 other items that were equal in power for those slots? Suddenly there's a lot of nice setups that *should* (in a perfect world) compete with each other.