Was just killing time reading through various teams' boards. Quick thoughts from a Minnesota perspective.
Nick Schultz is what he is. An average size defender that skates at an above average level. Generally fairly sound positionally. Any physical contact is virtually non-existent and he's among the league worst at moving the puck. If you're looking for a clean breakout from him, forget it. He patented the no-look, panic ring the puck around the boards here in Minnesota. He's a decent solidifying type of player on the bottom pairing but truth be told, there's a lot of organizations that have multiple players that can fill in for his role and not miss a beat. Biggest complaint about his time here is that he'll never give you any more than a decent game.
As far as what I've seen from Gilbert here in Minnesota, I've loved the trade (sorry to say for you guys). With that said, you're going to see a greater swing in terms of consistency. He'll have some clunker of games and decisions here and there but he'll also have moments that back up his position in a top 4 pairing.
So I guess it probably depends on what you're looking for in terms of your defenseman. For Minnesota, Gilbert provides elements in his game that are not readily available. Whereas in this system, Schultz was/is a replacement level player.