and Velodyne have high sensitivity subs, and no
better example than Strokers like 95-99 for the three models.

The next 2 I have not read anywhere that they are reknowed for their sonic
quality abilities,the Strokers are sold on producing pure SPL.

And what are the Velodynes known for?

However it looks like we will have to agree to differ as when it comes to
spending my money I will go for the sub with 89dB/W or less over and above
one that is higher, since from my time of building enclosures I remember
which ones always sound 'proper'.

What's the relation between sensitivity and "proper"? How does lower mean
better? What mechanism is responsible?