Trentino
I have always found Italy very difficult to fathom, maybe it is because it produces such a huge array of wines from an insurmountable amount of regions and sub regions from grape varieties that I have never heard of. This is made even more difficult as you can taste two, for example, Barolos from the same vintage costing the same price, one will be stunning while the other will be completely undrinkable, a 'minefield' indeed!
Fortunately the UK agency that I get most of my Italian wine from have won the Best Italian Agency at the IWC for many years and only represents the best producers and the best wines and through them I am slowly learning how to pick the best myself.