24" 12 BUL on rare occasions for it's lightweight and choke tubes....a generalist scattergun that works well from turkey to pheasants, tho the shortgrass will find some shots made more difficult by the gun's particulars.
Have to check but I believe my beloved 26" Sweet 16 is shorter overall that a BUL with the 24"...all about balance more than inches.
But, it's mostly about whether or not you enjoy shooting a particular scattergun and any resulting confidence derived from that enjoyment and a tad bit of experience behind the buttplate.
Apart from Xs on scorecards, swatting flying stuff is little upon which to fret....less so, if the target is not flying.
If you count the home defense type of scattergun afield...those Mitty-type things would often work quite well and would also require xtra work for many swatting situations.
Just depends, at a minimum, upon at what one enjoys looking or what image one wishes to project....be it deadly as a heart attack, old-line traditional or, "it's just like fill-in-the-blank has".
As to brush-walking, a 28" Auto 5 brings few negatives in thick cover, alder or buggy whip aspen or whatever....in maneuvering or shooting.
But, short-barreled "grouse guns" can make us feel best kitted out or more able to be successful.
Neither of which is where the importance lies, to me.
Nice squawks or breakfast bacon.