There are many famous game developers, artists, and technical experts who you could admire. Since this question is more based on personal preference, there is no right or wrong answer. Just ensure that you have a response! Be ready also to explain why you admire this particular person the most.
"There are many admirable people in the video game development industry; however, I most admire Markus Persson, the creator of Minecraft. Microsoft acquired his company for more than two billion dollars, which is remarkable. Besides his financial success, I appreciate that his passion for programming and creating great games far surpasses any ego he could have."
"My hero in the video game development industry continues to be Roberta Williams. In this male-dominated industry, it's exciting to see a woman be a stand-out. Not only that, but she is also more mature in age, being in her 60's, and still killing it as a video game designer, writer, and the co-founder of Sierra On-Line."