Sorry if this has been posted but I just skimmed this thread and noticed a comment by Me.
Yes, I think as an isolation exercise Pullovers are great but I have said many times that chins/pullups are probably the most productive back exercise followed closely by Rows IMO. But I do love Pullovers.
Also one thing I didn't see mentioned is BF, if your man teets are big and saggin, your lats aren't seen or gonna get much braggin.