The Best in Class were as follows with more info at http://www.iwsc.net/search/wine/ :

 Kilikanoon Covenant Shiraz 2006
Award:
Trophy / Special Award:
Tasting Category: Shiraz - Clare Valley - 2006
Entry Category: Vintage Wines, not a Single Estate (red, white, rosé)
Wine Colour:
Judges Tasting Notes: Pungent, fleshy, jammy and almost gamey nose with savoury minty oak overtones. Dark opaque ruby colour and ripe, intense blackberry fruit in generous abundance. Classic Shiraz, mature, dry, multi-layered and expressive with rich vinosity, great depth of flavour; big, solid but measured and beautifully formed.

 Kilikanoon Prodigal Grenache 2006
Award:
Trophy / Special Award:
Tasting Category: Grenache - Regions of South Australia - 2008-2006
Entry Category: Vintage Wines, not a Single Estate (red, white, rosé)
Wine Colour:
Judges Tasting Notes: Dark magenta colour with an earthern red edge. Old vine complexity on the nose, graphite, ironstone, roasting spices, currants and voluptuous framboise. This is a very beautiful, complex and generous Grenache, fleshy and sweet, dusty tannins and a long earthy herbal peppery finish. A very serious wine which is deliciously approachable.

Kilikanoon Barrel Fermented Sémillon 2007
Award:
Trophy / Special Award:
Tasting Category: Semillon - Clare Valley - 2008-2007
Entry Category: Vintage Wines, not a Single Estate (red, white, rosé)
Wine Colour:
Judges Tasting Notes: Pale clear straw lemon colour. A really inviting nose, lemon merangue pie. The palate is also very appealing, with lemon custard flavours, oak is background, and nice clean acidity keeping this medium bodied wine fresh but also giving a hint at the medium term ageing potential. Very good indeed.

Kilikanoon The Medley GSM 2006
Award:
Trophy / Special Award:
Tasting Category: Zweigelt - Burgenland - 2007-2005
Entry Category: Vintage Wines, not a Single Estate (red, white, rosé)
Wine Colour:
Judges Tasting Notes: Dark earthen crimson with a tiny pink edge. A very spicey, tar and earth nose, iodine, dried herbs over summer fruit compote. A rich meatiness in the mouth, the fruit is luscious and sweetly ripe with plenty of pepper and warm spices, tannins are foresquare and slightly dusty with a dense chewy, lengthy finish. This seriously needs food!

 Kilikanoon Covenant Shiraz 2005
Award:
Trophy / Special Award:
Tasting Category: Shiraz - Clare Valley - 2005
Entry Category: Vintage Wines, not a Single Estate (red, white, rosé)
Wine Colour:
Judges Tasting Notes: Violets and dark fruit are much in evidence on the perfectly ripe bouquet which is voluptuous, penetrating and seductive. Blackberry fruit meets smooth dark chocolate on the palate in a perfectly supple texture, fully developed and balanced with ample, soft, deep, more-ish flavours. Big, generous and utterly enjoyable.