Alright, here's my $0.02 on the new blanks.
I bought Ramyb's "Read" (M3XL) on Sunday and had it rush shipped. I received it yesterday and tried it on before I washed it. Yes, it's true that the sleeves are longer than the AA blanks, and it's true that the head/neck hole is wider. At first, I thought the head/neck hole being wider was a real deal breaker because it seemed to be REALLY wide on me. However, after washing the shirt in cold water and drying it in the dryer (for maximum shrinkage), I noticed that the head/neck hole shrunk to an acceptable width. I was wearing "Nyan's Dream" (AA M3XL) just before I changed into "Read" and didn't notice a real difference between the shirts when it came to the feel of the head/neck hole. They both rested comfortably around my neck.
As for the sleeves, I find that I prefer the longer sleeves on the Anvil blank because my upper arms are chubby. The Anvil shirt's sleeves also seemed to not creep up my arms as I'm doing things around the house. On the AA shirts, I constantly find myself having to yank down the sleeves to cover my upper arms because they creep up.
Now, for length and width, I did not notice much of a difference between the two. Now that I have had a chance to look at an AA shirt and an Anvil shirt after having washed and dried them both as I normally would, the lengths seem to be about the same. The widths feel the same, as well. Then again, I prefer my shirts baggy because, let's face it, my upper arms aren't the only part of me that's chubby!
The thickness of the shirts both feel the same, but the Anvil shirt is definitely not as soft as the AA shirt. Is this a deal breaker for me? Nope. Although the Anvil shirt is not as soft as the AA shirt, it is by no means rough or scratchy.
Will I continue to buy shirt.woot! shirts now that I've tried the new Anvil blanks? Probably, as long as they keep putting out designs that I like.
Overall, I prefer the Anvil blank because of the longer sleeves. I plan on wearing "Read" all day tomorrow, though, so we'll see if my opinion changes at all. Trying it on for an hour versus wearing it all day could make a difference in my opinion. I'll let you know if it changes.