I have never regretted going with RAW (in any game or edition). I have, however, sometimes regretted going with "common sense".
The RAW has been considered, playtested, and vetted much more than any off-the-cuff "common sense" ruling. If I were to bet which one would be better in the end, I'd lay my money on the RAW.
"Common sense" is not nearly as common or sensible as many people think. Just from seeing some of the house rules and rulings that many people here have made based on their "common sense", I beleive RAW is more common and sensible on a regular basis.
After all, were's the "common sense" in dragons (flying; breathing fire, acid, lightning, etc.), polymorph spells, characters surviving 100' falls, walking and talking objects, darkvision on 99% of the worldly races, and all the other things that we take for "common" and "sensible" in this game?
I, personally, would dread the prospect of playing with a DM who ruled "common sense" over RAW on a regular basis.
Quasqueton