Just wanted to throw my hat in the ring too. This is driving me CRAZY! (and yes, we're all familiar with keyboard shortcuts, thanks. That's not the issue here. The issue is that they took a useful button that everyone was accustomed to, then shrunk it and moved it away from the other buttons. With no option to customize.) I press the Stop or Reload buttons at least 500x more often than I hit the Home or Autofill buttons, but those are allowed to sit right there by forward and back. Why oh why can't I put my most-clicked button there too?
(csmith50, I was clicking around here earlier this week, looking for other people with stop/reload frustration, and last night I thought to myself "you know? it's like if Apple was building a car, and they decided to move one of the pedals..." I came to this thread to post that exact analogy, and look, you wrote my exact thoughts already!)
I'm hoping for a terminal solution to change that setting, which is how I dealt with the public beta. No such luck yet...
Everyone be sure you report this as a bug, Safari > Report Bugs to Apple