I recently had two Rieslings from the Eden Valley which made for an interesting comparison.
The 2003 Jacob's Creek Steingarten Riesling used to be branded Orlando, but Jacob's Creek won over. You just have to get over it. This was often a contender for best Australian Riesling of the year, but this wine is not quite up there. It has a strong lime flavour and is a dry wine, but with a slightly dull finish.
The 2003 Leo Buring Eden Valley Leonay is a very good wine, with more lemon flavours, minerality and a zesty finish. The wine is still very fresh, and has a great structure which develops along the palate. It will be good for many years to come.
The Leo Buring is the winner in my book. Unfortunately the branding and positioning of both wines is so poor that they get a lot less attention than they deserve.