There isn't necessarily a wrong answer to this question; however, the interviewer would like to see that you are not a sore loser. Speak a bit about your competitive side and show that you offer a great mix of the two options.
"Everyone loves to win, but I fully believe that we learn a lot from losing as well. I am not a sore loser; however, I will do what it takes to ensure that I win as often as possible."
"I think that of the two, 'I hate to lose' is more descriptive of me. I am a bit of a perfectionist when it comes to the work that I deliver which means that I dislike disappointing my boss, and myself. With that said, I know there is always something to learn from losing."
"Oh, I love to win! Moreso, I like to help my team members to succeed. Winning and coaching a winning team is a huge part of what drives me. Losing is inevitable at times. When I am not winning, it's essential that I learn from the experience, and implement changes from it, rather than dwell on it."
"I believe that everyone loves to win, but the most important part is how you react when you win, and when you lose. When I win, I look at what I did right and then implement that strategy more often. When I lose, I analyze where I went wrong and then pivot my approach as needed."
"I love to win more than I hate to lose. What I mean by this is that I don't hate losing. There is always something to learn from a loss, right? I am a gracious winner, at the same time, and understand there are learning opportunities in every situation - win or lose."
"As a salesperson, the love to win is what drives me. It's a natural inclination to want to win, but I do also learn a great deal from losing. When I lose, I will take the lesson and implement changes immediately."
"When teaching impressionable students, it's important that I show a gracious attitude - win or lose. I do not enjoy losing, but I am great when it comes to seeing the lesson in every loss."