I make lots and I really do mean lots of sweatshirt jackets to sell. I prefer Jerzees 50/50 with the Nublend . They wear like iron , almost no shrinkage , the color lasts alot longer, they dry much quicker and are actually warmer because of the poly. There is also a lot less pilling of the fleece side. Some of the 100 percent cotton I tried over the years just could not pass muster on quality control. The shrinkage is in the lenght , not a good thing as once you cut the band off they really are not that long. The pilling was quite substantial on the 100 percent cotton , and was very unappealing.
I have had customers come back 10 years later and still wearing the sweatshirt.
If I counted the number I have made it would be over 1500. Lost track of the actual count years ago.
No matter what sweatshirt you choose, pre-shink it! Its really not a good thing when all of the fabrics and the sweatshirt shrink at different rates.