I have seen all of them and the original series is absolutely brilliant. It's brutal and raw but I think this season was more enjoyable and easier to watch because it was more stylized and more fantasized (For better or worse).
2x08 Se Cayó El Sistema
2 times now they have bleeped a name. Don't know if it's bleeped in the US too or not. Seems they have bleeped the name of the president of Mexico or some high ranking person who worked with the narcotraffickers or something. It's ridiculous.
Saw 2x07 Truth and Reconciliation. This season is highly recommended. I find it much better and more interesting than season 1. I can't say enough good about this.