system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] Why do Lanterns bother with elaborate constructs over simple forms?

What is the benefit of a Green creating a giant fist to punch  Sinestro, why not just a beam of concussive force?  Why make a green brick wall to block the heat vision of Zod, why not just a force field?  Is there any advantage to using fancy constructs as opposed to just simple beams and bubble/plane shields?  You would think it would be better to keep constructs simple so you aren't constantly thinking about interesting ways to send green sharks at your enemies and can concentrate on more important things.
gpt
It's more to do with how the user thinks, than the effectiveness. Kyle Rayner makes beautiful, artistic constructs. John Stewart makes solid constructs - animals with organs, machinery with gears. Hal Jordan makes giant boxing gloves or scissors or nets. Guy Gardner projects abstract force. All are effective.