Phyl,
Maybe the information on this website will help.....

Here is a link that might be useful: Growing Lilies for Cut Flowers -- Including Bud Count

Thanks so much for looking into this for me...you've always been so helpful to me (on the cutting forum especially). I found this site too, but I know I found a totally different, more specific article with even more cultivars somewhere a year or so ago....just can't locate it again. But this is a good one too. Hope you're doing well! :0) Phyl

Phyl
Try looking at www.zaboplant.nl
They have bud counts for quite a few varieties,that they have taken from their own trial house.
One thing to remember is that on varieties with a high bud count,that the buds are generally smaller.
In the U.K. the top sellers are varieties with huge buds, there are less on a stem,but they make much more impressive bunches.
Rich