Everyone has a favorite anchor and I am no different.
I have a GB-42 and swear by my 66# Bruce knock off by Lewmar. I have used this anchor 3 years from Maine around to the Gulf Coast and the Bahamas and am proud to say, I have never dragged in all that time. And I almost always anchor out. And I cruise 7 months a year.
66# is a big anchor and you need a powerful, well installed windlass to handle it. I also have an all chain rode of 3/8 high test chain which is a size larger than recommended. And I use a fairly long stretchy 7/16" snubber. (I switch to heavier ones when it airs on.)
Weight is your friend.
Incidentally I have a 105# wife who handles all this with ease.
'73 GB 42 CL #362
Punta Gorda, Florida