I use mobafire and solomid, as long as you use the guides that have merit behind them you will do alright.
Reaper_Minion posted...
90% of the guides are troll guides, with some decent guides lost in the mix.
I mean, Zhonya's Riven? Really?
Also, this is the build i mainly use on riven:
http://www.mobafire.com/league-of-legends/build/riven-valor-for-all-147416
and it is fairly similar to this one:
http://www.solomid.net/guides.php?g=16914-goldfather8-riven-build-guide
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