A region that is just too big to generalise about. The difference between Upper and Lower Yarra can be the ability to ripen some grapes or not. Great wines are made in the Yarra but it is best to know the producers.
A bit of a chameleon, Shiraz can change how it looks depending on terroir and/or winemaker influence. The Syrah-based wines of Northern Rhone are dry and austere while the Shiraz of Barossa is rich and fleshy. A variety that lends itself to long aging but can be drunk at any time of its evolution.
This is the most elusive grape. It is relatively early ripening and extremely sensitive to terroir. Its perfect place on earth is the Cote d’Or in Burgundy. So haunting are great red Burgundy’s charms that growers everywhere try to emulate them. Pinot Noir is not just a one-trick pony, it can make great reds, rosé, sparkling and even sweet wines, whites on occasion and I’ve tasted a decent fortified Pinot Noir too.