I had a phase where I liked gangsta rap when I was in middle school/high school. I look back and feel like an idiot. After my life changed greatly, I basically wanted to listen to the exact opposite kind of music. I no longer really liked "hard" music very much, so I stopped listening to rap, and most metal, and cut down on rock, too. Basically all those music types remind me of how bad the world is. Especially rap. I guess a big change in my music tastes came from me sorta rediscovering Christianity again, after I became Christian again I just had less desire to hear those types of music. I started liking "girly" techno type music even more.
Corresponding to this change, I also wasn't in high school, nor around people much, so I had nobody to really influence me musically, whereas high school musical taste can very much influence cliques or whatever. But I started listening to eurobeat, then eurodance, then trance, etc, and just didn't listen to rap and the like very much at all after awhile.
So yeah, gangster rap, pretty much all terrible. However, some of it is catchy as all hell, and I do remember rap songs well, though usually not positively. Still, though, I'll think of like Cee-lo's "Wanna be a Baller" or something and give it a listen sometimes for fun. Also, I still am OK with older Outkast actually. Their first ATLiens album is very good, but it's not that "gangster" really. I'm OK with underground rap to a point, too, just it's not stuff I really like, care much about anymore.
I got more into R&B, too. I like older R&B quite a bit, I especially like some of the New Jack Swing type stuff, ala Bobby Brown. I'd pretty much rather listen to this,
[youtube]http://www.youtube.com/watch?v=wbL2lMn34Oo[/youtube], anyday of the week over rap. It's got the same funkiness, but sounds more pleasant. Also, even the good rap beats, like stuff like Dr. Dre and whatnot, is pretty much just stolen directly or stolen stylewise (or Suge Knight kidnapped George Clinton and made him make beats for him) from the old funk music of the 70s. So in that case, it's better if you wanna hear that, to go straight to the source.
Lakeside - Fantastic Voyage
Coolio got that song and rapped over it, not that the Coolio song is really bad or anything, but yeah.
But yeah, gangsta rap, not good music, and overall a very negative influence on society.