Maybe Jesus?
Look at it this way: Jesus has been a role model for nearly two thousand years. Sure, churches these days seem like oppressive, intolerant institutions of hate mongering. And yes, many people have done terrible things in the name of Jesus.
But, so many people are willing to criticize Jesus for stupid reasons. They're atheists (look at him like a fictional character if that makes you feel better), they're anti-religion (so why not study that which you criticize?), they know the basic stories but haven't really read the Bible.
Here's the thing: Jesus's story is pretty much buried in the WORST FORMAT EVER. It's like comparing Blu Ray to DVD, except it's fifty steps BELOW DVD. Seriously, "Wuthering Heights" is easier to read than The Bible.
So, without having to waste months trying to understand The Bible, you're kind of stuck with churches and their "interpretation" of The Bible. Imagine trying to listen to your grandfather explain the plot of a really good game, but he only focuses on the parts of the game which imply that homosexuality is bad. That's church.
But if you're looking for a role model, Jesus isn't a very bad choice, just an inaccessible one.