The light that comes to mind first is the L2-D CE.
Of course it's not as bright but I believe has the same functions and its output is very impressive for a light running on two AA's.
I recently discovered the Sanyo Eneloop batteries thanks to CPF and got some the next day, they certainly make the AA format lights more appealing.
When you say AA powered are you thinking primary alkaline (personally would not recommend especially now with the eneloops available) or are you also looking at Lithium-ion such as the 14500 also in AA size?
If you want a good all round light using rechargeable aa's I'd suggest the Fenix L2-D CE or if you're looking for something a little different I quite like my DexLight, it can use standard rechargeable, primary alkaline or li-ion rechargeable 14500 while maintaining all the functions of the U.I on which ever battery.
It's my understanding that the circuitry is not as good as Fenix especially on lower lever output, but I think it's a great light and very versatile also has a very smooth white beam.
The Dexlight will not give you the same runtime as the P3DCE but if I'm out and it's my only light I have a small battery container with a couple of spares ready to go.
I'm also interested in current and up coming AA lights so I am looking forward to see what people can suggest.
Simon