It's tough to say because it's been a long time, but Kopi and Brown have had career years with one another. Maybe part of why Kopi was scoring more goals back then was because Brown was puck hogging a little...in other words, instead of Kopi circling the offensive zone looking for a pass, Brown was doing his Gretzky curl in the corner and trying to hit Kopi in the prime scoring areas. I can remember this being the case in the playoffs quite a bit.
Now, having a guy like Brown on the third line is actually a luxury since few bottom-sixers on our team can carry the puck through the neutral zone and into the offensive zone. But I'm not convinced Kopitar being the puckhog on the first line is the answer. He's clearly the best at gaining the zone (hm: lewis, which is why I believe he was up there too, since people were sitting on Kopitar), but I think he would benefit from having another guy who can hold possession because 1. he gets double-teamed too much, 2. Gaborik is dynamic but he's not exactly a board beast, and 3. what I mentioned above about Kopi's possession vs. getting open in a scoring area.
Don't get me wrong, I don't think Kopitar will EVER be able to sneak into the slot unmarked, but how often do you see him WITHOUT the puck in the offensive zone? Only guys on the team I see effective with him like that are Brown and Williams so far, maybe Pearson can help, but it's clear to me they need some sort of physical presence up there.
Edit: also, I only see two charts for a comparison, I don't understand the odd hyperfocus on those. Is there a meme going on that I missed?