The current Australian Second Crop Sires table looks like this.

This table only tells part of the story as Dundeel has achieved a chunk of his success in other countries siring three year-old Atyaab to win the Group I Cape Derby at Kenilworth in South Africa as well as two year-old colt Yourdeel to win the Group I Manawatu Sires Produce Stakes and ARC Sistema Stakes, performances that will see him crowned Champion NZ 2YO for 2018/2019.
The overall statistics at this point in their career highlight their growing stature as elite sires of the future.
Zoustar Statistics – courtesy Arion

Zoustar has sired the winners of nearly $10million and his 62 winners is nearly double that of Dundeel, but on the score of stakes-winners they are seven apiece and while Zoustar has one Group I winner, Dundeel now has three after Castelvecchio won the Group I ATC Champagne Stakes on Saturday.
Dundeel Statistics – courtesy Arion

Dundeel's seven stakes-winners have come from considerably less runners giving him a stakes-winner to runner ratio of 9.7%, while Zoustar has the stakes-winner to runner ratio of 5.9%.
On the score of winners to runners, Zoustar has the edge with 52.1%, while Dundeel has 45.8%.

A champion 3YO Sprinter by Northern Meteor, Zoustar has had every opportunity at Widden and stood his first four seasons at a fee of $44,000, before going up to $60,500 last spring after being crowned Champion Australian First Season Sire thanks to his superstar daughter Sunlight, who has trained on this season to be the best three year-old sprinter in the country.
Dundeel was the Champion 3YO Miler / Stayer of his generation winning the Randwick Guineas, Rosehill Guineas, Australian Derby and Spring Champion Stakes before returning at four to win the Group I Queen Elizabeth Stakes and Underwood Stakes. He has stood for his first five seasons at a fee of $27,500 but we can expect a big increase this year.

What the future holds for both young stallions will be interesting to see unfold, but one thing for sure is that if you have a mare in foal to either, you have hit a home run!