Alan, I also find I generally like the yellow (and red) peaches more
than the white ones. This year I had some white peaches which made me
revise my opinion up a bit however: the Silver Logan (but it got rot
badly) and the "Oldmixon Free Improved". Plus I like several of the
white-fleshed "donut" peaches a lot. All of these have some common
flavor which is very good, and which is not mild like my Georgia Belle/
Carolina Belle/Stark Summer Pearl. The closest thing that comes to my
mind is a very ripe honeydew melon, but without the cloying element of
melons.
I had bad rot problems on several peach varieties this year. Just
today I had to remove half of my Sweet Bagel peaches due to rot. The
Lemon Free also got it very badly, plus the Silver Logan as mentioned
above.