Maybe Ken will play a game with us: three blocks here Ken, which one do you want?
I'll play!
The block on the right hand side has quite wide grain although, sometimes this wide grain can be depicted as 'angel hair' which, if stained and finished well, can look quite nice. This type of block can sometimes be pretty clean when cutting it i.e. not many flaws coming up.
The block in the middle probably has some nice grain on the 'front' of the block i.e. on the right hand side but staggered grain on the left. I would suspect that it has much tighter grain than the first one. In order to produce a straight grain from this block, I would need to tilt the block when cutting it in order to 'straighten up the grain'. You can see that the grain runs diagonally/at an angle. This block requires some cutting skill to bring the best grain out.
The block on the left is most probably the finest of the three. It may well have some really nice tight grain on the left side and nice tight grain on the right side too. It may need some subtle tilting to pull back/align the grain still further ready for turning. I would cut this block slightly 'off the grain' so that when it is turned the grain would return in a spectacular way. This type of high grade block can be fraught with danger (flaws running through the block along the grain, and needs some real attention when cutting it. Whilst all three blocks have the potential to be finely grained pipes if cut well, this block could be something really special.
Did you want me to say which saw mill supplied which blocks?