"I've never seen the original staging...this production was my first exposure to WEST SIDE STORY"
Oh, wow...now I totally understand. I can't at all blame you for your feelings about this production. I'm almost a little jealous that I'm too familiar with it to enjoy this production to the level you can.
But Arthur made some very strange directorial choices, and while he didn't ruin the show (not possible with WSS), IMO, his directing took away from it, and is not up to standards with what past productions have been.
But don't let that ruin your enjoyment, really. I hope one day you'll get to see a production that lives up to the full potential of the show, but in the meantime, I'm so glad you're enjoying this one.
And LJ, there are plenty of us, myself included, that have never had any personal experience with Arthur, that just simply dislike him for what I believe to be poor directing of this revival.
"If there was a Mount Rushmore for Broadway scores, "West Side Story" would be front and center. It snaps, it crackles it pops! It surges with a roar, its energy and sheer life undiminished by the years" - NYPost reviewer Elisabeth Vincentelli