Suggesting that Rasmus Dahlin goes anywhere except 1st overall is ludicrous. Last season, he posted 73 points in 78 games which is phenomenal for a defenseman. While Quinn Hughes performed just a tad better with 76, he is not nearly as defensively dominant as Dahlin is. Dahlin also finished 8th in Norris voting last season which was ahead of Quinn Hughes and likely will finish even higher next year.
Last season, Andrei Svechnikov played 64 games and registered 55 points, a pace that would have seen him score 67 points in 78 games. While points are not everything, watching Dahlin be more productive than the redrafted 1st overall pick is mind-boggling.
The only true competitor to Dahlin is Brady Tkachuk who scored 83 points last season and is the Senators' captain. While not as dynamic as Dahlin is, he is one of the most physical players in the NHL and really brings an old-school style of hockey to the Senators which any team would like.