Cabernet Sauvignon.
Pronounced Cab-err-nay Sov-inn-yon
No other grape variety, red or white, can lay claim to being a significant component part of as many astounding wines as Cabernet Sauvignon can. From Bordeaux (its undisputed homeland), to the Napa Valley, from Australia to Tuscany Cabernet, often with help from its friends (most significantly Merlot) is the commander-in-chief of vitis vinifera.
Cabernet Sauvignon, when mastered, provides and explosion of fruit flavours that include blackcurrant, dark-cherry and plums and when allowed to mature there is an addition of cigar box, mint, old leather and spice-galore. And it is this age-worthyness of "Cab" thanks to it's high tannins and acidity that elevates it to it's lofty position in the grape hierarchy.