Sorry but this is way off. Dustin Brown is not a player to be "stapled to" he's a player that can produce, that has skill, and as much as Lucic has. DB has higher career totals, higher GPG, higher ppg and was on fire last year, resurrected, after being out of Sutters dog house. This as well while playing on a team that requires D responsibilities first. Also DB had 61pts last season, as high as Lucic has ever had in his career.
Alex Iafallo? This kid is uber talented and unlike Kailer Alex Iafallo possesses the puck like crazy. its glue to his stick for extended periods of time. Alex can rag the puck while his linemates get open. The big difference between Iafallo and Yamamoto is that Alex can withstand contact and is age 24, seasoned, and at the hockey prime of his career.
Then, and I can't believe you're not thinking this through, Kopitar has the benefit of one of the best D in the game, a PMD, Drew Doughty. Plus, and this should be the most obvious, is you're comparing an in prime Kopitar to a young 22yr old Draisaitl. You're doing that apparently with a straight face or not even thinking about how fair the comparison is for a moment.
When Kopitar was Draisaitls age he was being sheltered by the likes of Carter, Brown, Justin Williams, just for sake of comparison.