Really, it's the same shit. Lol
You can make most scripts with common events, and vice-versa. There might be performance enhancements if you program them, but really it's not a complete game changer. The process of running say 100 common events might become an issue, but most games don't even reach that. (At least not running all at once)
I'd say the main benefit to scripting would be the fact that you don't deal with messy event pages anymore xD