Most Helpful Girl
Everyone likes it when people are nice, but that's far from the only trait out there that matters. A nice girl might be one of the nicest people in the world, but if she's 300Ibs what guy is going to want to date her? Even if he's also a nice guy?
Point is - develop yourself in other areas apart from being nice. Don't count on "niceness" to get dates. I don't mean just looks either, but confidence, being fun and interesting, knowing how to interact with people, having goals and things in life, etc.
Most Helpful Guy
Women are weird, hard to say. I've seen it fall both ways. Now all women (almost all 97%) will say nice guy, but its probably more like 60% want a nice guy.
That doesn't mean being a total dush, just means you got to play the dating game that society has set up. Win some Lose some.