I know it's a month late, but I just recently got a baitrunner, so here goes!
After using both, I can tell you that I like the baitrunner much, much more than the quick drag, but really it all boils down to personal preference. You can use both in the same manner. A lot of people like the quick drag because they can adjust the drag much quicker during the fight, and play the fish in a more efficient manner. With baitrunners, you can do the same, but at a slightly slower pace. The real advantage of the baitrunner IMO is that you can have the "perfect" drag set all the time, and switch to that as soon as you get a bite. I'd try both out and decide for yourself which you like better.
New to angling. Catch and release. The dream - to catch at least one of every species in our great state (if I can manage to resist carp)!https://txmultispecies.imgur.com/
PB Common - 20lb 6oz
PB Ghost - 13lb 9oz
PB Koi - 9lb
PB Smallmouth Buffalo - 28lb 12oz
"Take only memories, leave only footprints, kill only time."