Who's got the best book of mares?

[Starine]

War Front, Deep Impact, Frankel, Tapit and Galileo are all receiving incredible books... but whose do you think is tops?

[Izvestia]

That is a tough one. I'd love to see a complete list.
Galileo and Frankel see some pretty amazing mares. I am not as familiar with Deep Impact's mares.
Tapit is all booked up, but I actually think pound-for-pound the mares I've seen listed for War Front are "better". It's totally subjective!