I'm biased and say go AK.
I don't like the feel of any other gun, the handeling or working with another gun. I can work with another gun but, I feel sorta not right about it.
To me, it's like having plain fries, I much rather feel better about having a poutine AK
AK's have come fairly popular the past little while, lots of extra parts out there. You can customize it any way you like almost now a days.