Dear Monkey2--

The Miguel Escorihuela Gascon you mention is indeed one of the very good wines of Argentina. I think this label is many times overlooked, and even underestimated, as it looms behind huge names and labels like Angelica Zapata, Catena Zapata, Felipe Rutini, and others. In addition, this wine is a very strong competitor considering its price, well below the Felipe Rutini and the Catena Zapata.

As for dessert wines... there are a few notables:

1) Terrazas Afincado Petite Menseng
2) Achaval Ferrer Dolce
3) Rutini Vin Doux Naturelle

Of the above, only wine 3) has Botrytis involved in its production process. It is currently the only Argentine dessert wine with this characteristic. From your description of your preferences, the Rutini is probably your first choice.