This definitely changes a lot, but right now I'd have to say:
Alexsander Freitas
Jack Harrer
Brent Everett
Brent Corrigan
Blake Mitchell / Lane V. Rogers
Diego Sans
Helmut Huxley
Austin Wolf
Corbin Colby
Paul Pratt
Honorable mention to Devin Trez, I'm sure he'll eventually make the list, but I discovered him like 5 days ago. He's much better than Brent Corrigan nowadays, but I'll always like Corrigan for his twink/twunk days…