The answer to this question, 100% of the time, is yes. Yes, Smart Triggers make a huge difference, but the difference won’t be felt the same by every gamer. A talented FPS player will absolutely adore the Smart Triggers over the standard controller triggers, since Smart Triggers will improve the time between his reactions and their inputs by a number of milliseconds (which is huge in competitive FPS matches).
That said, a casual GTA player might find that the difference, although present, isn’t enough to warrant getting used to the new feeling Smart Triggers bring to the table. In which case, said GTA player might want to opt for the Trigger Stops to get the best of both worlds.