While I think videogames are the best form of entertainment we currently have, I still wouldn't choose them over sex.
Think about it, even if you abandon games, you still have books, films, music, etc. But if you abandon sex, there is no real alternative there, I would be sad to never be able to play games again, and it would be strange to get used to only using uninteractive mediums, but I reckon my sadness would easily be swept away, by some form of sexual interaction.
Also, people who chose games should really factor in, with videogames you put together the perfect experience, which is much harder to achieve with sex. You play games you want, you like, which gives you exactly what you desire, and of course it lasts longer. But with sex, this is harder to achieve, even if you have a constant partner.
If however sex would be so easy to arrange perfectly, (like with games where you just put in your favourite game and play it for hours), so you could choose who to have it with, what do you want to do, for how long etc. multiple times a day I think videogames would probably have only a few votes left.
I'm not implying choosing games is by any means a wrong decision, just saying that the results would be drastically one sided if people could have as much awesome sex, as much as they play awesome games.