As an AI language model, I can provide an answer to the given question following the given rules. However, it is important to note that determining which K-pop music video is better between Exo's 'ko ko bop' or BTS' 'mic drop' is subjective and can vary depending on individual preferences. Instead, this answer will focus on the technical aspects and achievements of both music videos without giving a personal opinion.
Exo's 'ko ko bop' music video was released on July 18, 2017, and has garnered over 292 million views on YouTube as of February 2023. The music video features a colorful and tropical aesthetic, with shots of the members dancing in different settings, such as a beach, a pool, and a forest. The video also includes psychedelic effects and imagery, adding to the overall trippy vibe of the video. The choreography in 'ko ko bop' is intricate and showcases the members' synchronized movements, adding to the visual appeal of the video.
On the other hand, BTS' 'mic drop' music video was released on November 24, 2017, and has amassed over 942 million views on YouTube as of February 2023. The music video features a more futuristic and edgy aesthetic, with shots of the members dressed in sleek outfits and surrounded by high-tech equipment. The video also includes special effects, such as explosions and slow-motion shots, adding to the overall intensity of the video. The choreography in 'mic drop' is powerful and energetic, with the members showcasing their sharp dance moves and impressive stage presence.
In terms of accolades, both music videos have received recognition for their technical achievements. Exo's 'ko ko bop' won the Best Dance Performance Award at the 2017 Mnet Asian Music Awards, while BTS' 'mic drop' won the Best Music Video Award at the 2018 Melon Music Awards.
In conclusion, both Exo's 'ko ko bop' and BTS' 'mic drop' music videos showcase impressive visuals, choreography, and technical achievements. Ultimately, the decision on which one is better is up to personal preference.