The cava from Penedès comes from a good winery, so it's probably all right. I haven't tried it.
The Ordóñez wine is a sweet Malaga style wine. I think it goes for something like 30 euros in Spain. I've tried it and it's good but I question the price tag too. I know a lot of work goes behind these wines, but still...
The fancy Malaga wines tend to run in the neighborhood of 15-40 euros, though you can't go wrong with a Malaga Virgen for about 6 euros!
Most are made from the Pedro Ximénez or Moscatel grape varieties. The PX are especially thick, rich wines with a very raisiny flavor. I get tired of them pretty quickly but they are tasty in small doses!