Hot Babe - Wouldn't work. Too many contrasting opinions. Echelon likes pregnant women, and I don't in the slightest bit. Some people find tattoos on a girl to be sexy, and I don't in the slightest bit lol. My favorite hairstyle on a girl is brunette, long, and kind of curly, while some people might hate that and think the best is blonde, short, and spiked. Not enough grounds to compare. But, hey, if we did it, I'd throw in my suggestions.
Greatest Sports Team - Personally, I don't follow sports for the most part, so I wouldn't participate in this at all. It'd work well for others, but not for me.
Sitcom - Hm.....only problem is, Simpsons wins already. I mean, come on lol.
Videogame - I'm not a huge gamer, but this has the best potential. Lots of grounds for comparison. Replay value, graphics, whether or not they "broke the mold", iconic characters, storyline, gameplay itself, etc. Definitely the best option. And if this is the case, I'm SO pushing for GoldenEye for N64 lol.