Before writing off the entire industry for all vintages, perhaps you might share some specifics.

As previous FTers have mentioned, the area and vintage of the grapes play a large factor in how a wine compares to expectations, before even getting to the winemaker's part in composing a style of wine.

I'm sure you could easily pick a poor Cab Sauv but with a little knowledge of the areas and vintages one can avoid a relatively poor vintage (2003) and stick to Coonawarra or McLaren Vale-sourced wines rather than say Margaret River or Hunter for this variety.

As for picking a 15.5% version - that's like just asking for rocket fuel!
Why not find a booming Shiraz, if you're just wanting a big wine? These are very often made for cellaring 10-15 years.
Best to put away such wines, if a good vintage, for 5+ years and go for something suitable for drinking now.

But if you prefer to never have another - then there is more for me! ^