Of course, some manuscripts have more hand written errors than others. We have to take them all together. IF have 50 letters and 47 of them spell "Jesus" as J e s u s but 3 spell the name differently I HAVE NO DOUBT AS TO HOW TO SPELL JESUS.
Other things being equal, manuscripts are "better"
DAVEH: "better"?!?!?!?!......Hmmmmmmm......Does that imply that some are worse?