The Mighty Duck Man
R-E-L-A-X
Has he though? Outside of Karlsson's outlier season last year, he hasn't out produced Rakell until last season and this year where he only had 13 more points in 13 more games played while Rakell played on a much worse offensive team. Let's also keep in mind that Karlsson only had 9 more goals than Rakell last season, they were both great last season. Might have more value because he's a center, but Rakell is also signed to a great contract while Karlsson is a RFA. Both players have turned into great players, don't feel bad about who we picked at all.
I think Karlsson might be more valuable as a player because, like you said, he's a center, and a good defensive one at that, but yeah I also think its really close. I think this year's production is around what to expect from Karlsson whereas this season was an obvious down one for Ricky, although I'm not too sure what to expect of him.
I also don't have any regrets over who they chose there, especially since I think there's been some rewriting of history with Karlsson in Columbus and I truly wonder if he needed to go to Vegas to put it all together(which obviously doesn't happen if he just stays here).