title: Selenium vs. WebDriver, any obvious advantages?
body: <p>I've moved from SeleniumRC to WebDriver for nearly two years. But I have to say that I haven't felt there's any obvious advantages for webdriver over rc.
  Now I have 200+ test cases with C# driver against a website. But when I run them thoroughly for regression testing, I usually get 150 passed and 50+ failed/errored. After running failed test cases for the second time, many of them passed, only few of them were proven to be issues with the testing code.
  As I can see it, sometimes WebDriver is really performing slowly, while I never met with such a situation when I was using SeleniumRC before.
  As a result, I started to doubt the necessity to move from rc to webdriver, because it took much more time for me to verify errors and failures than before.</p>
  
  <p>So my question is, are there any advantages for webdriver over rc to make it worth it to move from rc to webdriver? If so, can you please kindly tell me? Also, tell me about the disadvantages.</p>