I'd actually like statisticss to follow a resource management path myself, where you have to manage four different categories and keep them within certain parameters. Going back to the Date Ariane example, say you have 4 statistics. Well, actually you don't have 4 statistics but the girl you're talking to keeps track of 4 statistics of how they perceive you. All start at 0. They are Nice, Sexy, Smart and Funny. When you pick a dialogue selection that's a nice, non sexual remark you get a point in nice. However if you get too many points in nice then you lose by entering the friend zone. If you pick a response with some sexual innuendo, you get a point in sexy. If you go too far in sexy then the girl just thinks you're a sex crazed lunatic and you lose the game (or just that particular girl). And so on and so fourth. Now you may be able to unlock different scenarios by having different combinations. If you are smart and funny (because you have a lot of points in smart and funny and not many in sexy and nice) you may have a different sexual encounter than if you're smart and sexy.
Now in Date Ariane there was only one girl but you could use this system for a game with multiple girls, where each girl keeps track of a separate score based on the conversations you had with that specific girl. Each girl could have different tolerances. One girl may really like funny guys while another hates them. If you wanted to, you could start the game with a few points to buy some qualities. So at the start of the game, you could choose to buy the Good Looking quality, which raises the ceiling on your statistics (making the woman a bit more forgiving since you're so darn good looking) or the Perceptive quality which allows you to see your statistics totals (normally they would be invisible). The Charismatic trait may allow you to see the tolerances of each girl. You might not even have to buy the statistics, but they could be given as rewards after unlocking certain combinations of achievements and you can get the qualities when you start a new game. Then each playthrough gets easier and cuts down on the monotony.
Now to make the possible combinations even more complex, you could have ways of shifting a girl's tolerances in the game. A girl's tolerance to Funny may increase if she's had a few drinks or is in a nightclub, where Funny and Sexy would be ideal in that location. So instead of impressing the stern librarian with your smarts and taking her to see a foreign independent film, you can instead take her to a nightclub and get a few drinks in her to lighten her up and get her to let her hair down. Or if you are more interested in a BDSM type scenario you won't want any points in Funny and instead want a high total in Smart (so you are intimidatingly smart) with a some Sexy (so she wants you) and Nice (so she trusts you enough to know you are not a total psycho) and get her to a dungeon environment, or a more punk or industrial themed dance club. Throw in a guitar hero/dance dance revolution type minigame to unlock the Good Dancer trait so I can automatically be a good dancer in all my successive games and I'm happy.
In short, I want to be able to shift the dating game to a strategy/resource management type game and away from a Role Playing Game. I want to play the game for the entire game, not just grind statistics until I maxed out and then eventually play the game at the end.
That's my opinion anyway. It could be a good idea or my ego may be writing cheques that my body can't cash.