The best purple I've had was Dutch passions blueberry circa 02'. Super taste quality and yield, but only lightly purple with red and blue hues on a light green background. The most purple stuff I had was my recent venture with cannaventures Purpleberry. Sounds like gr.thumbs big purple was similar. Weak and bad taste but black as night, really sad looking bud too.
My Dp blueberry looked similar to raider's but with crinkled leaf deformity and a bit more purple including purple stem. Actually what I call the two phenos purple stem and green stem. the green stem blueberry was a monster like raider's big girls up above, but no purple what so ever, great taste though.
Long story short blueberry is nice!
Sorry I never took pictures of the purple berry and I gave all of it away cause I did not like it, but I did keep my strongest male to use for crossing grape god and power kush. Ill try to get a thread going on that once the little guy grows nuts and blows a load of pollen all over the closet.