As with so many things, you can look at this in a purely theoretical point of view, but unless you have access to all possible cards and/or unlimited money to buy anything, then it makes a lot more sense to see which VLB SCSI adapters you can actually find/afford and then look how suitable they are for your purposes.
Pretty much anything from VLB era will support DOS, Win3.x and OS/2, most will work fine under WIn95 and NT as well, so unless you find something really obscure it will probably work.
Benchmarking/reviewing was so primitive in the day (at best a deepdive into one very specific use case/application, invariably either NT or Unix-based for hardware like this) I wouldn't put a huge amount of trust into "card X is faster" or "chip Y is faster" statements. If you find the motherlode of VLB SCSI cards it would be very interesting to do a comparative benchmark. It wouldn't surprise me to see similar results as with VLB VGA: where under Windows (NT) acceleration features determine performance, under DOS it's just a matter of efficient bandwidths - and the simplest solutions perform best.