The above mentioned stats are listed from non-OC'd chips. With the i3 and dual core Sandybridge chips being locked the stats are meaningless. An OC'd FX-4100 will trounce the Intel offerings which are either next to impossible to overclock or pretty damm tough.
I don't know where you get your data but I think you keep overstating that Intels price competitive offerings are better that comparable AMD's seem skewed. For the price and coupled with a good GPU the AMD systems will play games very well. I speak from experience as I own and game with FX-4100. I have not had a single game give me problems while using this rig.
My System:
AMD FX-4100 @ 4.8GHz Turbo core still enabled
AMD 6970 GPU
8 gigabytes DDR3
60 gig SSD Crucial
SeaSonic 750 watt 80 plus Bronze power
Rosewill Full tower case
H60 Corsair sealed loop cpu cooling
Western Digital 650 gig sata 3 storage drive
With all that said I can't compare apples to apples because I don't own an Intel rig. I can only go by synthetic benchmarks and my own results.