We run weights on the bottom. I'm not sure that I have a reason other than, "we've done it this way for years". It is easier to change weight. Given I now have livescope I can see my lines on screen so finding bottom/snagging is a non-issue with either style.

One thing we do a bit different from others I see...we do not run our hooks on leaders. We simply tie hooks directly to main line with a dropper loop. This significantly reduces tangling. We tie hooks, approximately, 12" and 30" from weight.