As I said in your previous post, she can have success, depending on the way you gank the lane, it is terryfing to see a Riven come and gank from the far end of the lane. It is nigh impossible to avoid as well, due to stun on demand and high mobility. You just really have to make sure, that the gank either rewards you with a kill, or an assist.
Tried it multiple times and as great a ganker as she was I always fell off hard mid(ish)-to-late game. --- http://tf2b.com/?id=hostilefire | Steam ID: HostileFire http://battlelog.battlefield.com/bf3/soldier/HostileFire/stats/188642465/ps3/
Start red and get a leash. Come in for terrifying ganks, it's hard not to get your lanes fed. Riven will stay relevant (but not a terrifying force like when she wins top lane hard tho), but all your lanes will thank you because they're all fed.
That's the point of jungling. You're getting all the other champions, not yourself, fed. Riven is seriously one of the most OP champions in the game even after nerfs, but a weaker-but-still-relevant Riven is worth 4 fed champions. --- Funky Strong "Date vuelta. Veras el color rojo cuando termine contigo..." - Vega