I personally prefer old school Hip Hop than the current ones. The reason why I prefer old school rap more than the current ones is not so much for the excessive swearing but rappers of today talk about sex, money and their bling. There are quite a few that talk about their lives though. I like listening to Fat Boys, MC Hammer, Run DMC and the likes.
Also, I recommend you guys to watch Krush Groove (1985). Its a good movie that show the Hip Hop scene from the 80's!