There are 30 bud builders listed in ATP's Daylily Database - the full list is at the end of this post, but you can also search for specific characteristics yourself (
http://garden.org/plants/group...[27) ... After going to that link, just scroll down a little to "Plant Traits" and click the "Bud Builder" box, and hit your computer's return button to see them.
Some that have been mentioned above do not indicate their bud-building ability in the database, though, so they could use some updating, if you are sure they are bud builders (click the "Plant Database" tab at the top of ATP's pages, put the daylily's name in the search box, click the link to the correct daylily in the resulting search links, and scroll all the way down to find the link to update information)
Then just click the "bud builder" box and save the new information.
ATP's Bud Builders:
Alchemist
Arrogant Bastard
August Fire
Backyard Friends
Bold Vision
Countdown to Fall
Don't Know Jack
Double Perico
Early Bird Special
Feminine Mystique
Last Laugh
Lillian's Funky Spunky
Mad Jacky
Monacan Trail
My Tracy Pie
No Puede Ser
North Wind Dancer
North Wind Drifter
Pee Wee's Big Adventure
Point of View
Red Tailed Hawk
Saint Elmo's Fire
Shenandoah Dusk
Surfin Dude
Synaptic
TNT
Taunting Tapestry
Tutti Frutti Curls
What Price Glory
You Go Girl