Dragicevic has elite hands and playmaking, he reads the play well and has good stick work. He needs to work on consistency but he's IMO the d-man in recent drafts closest to being the next Makar/Hughes etc. Nobody else has hands like him and his shot is also a bomb even though he's more of a playmaker. I'll acknowledge there were concerns with him from scouts but personally in my viewings I never really saw those concerns. I don't think he's bad at defence. Just raw.
Firkus has elite hands, vision, and hockey IQ. He's the definition of a player who has a nose for the net much like Eiserman is in the same way (or someone like Tkachuk in the NHL). He's small and needs to work more off the puck defensively but he has the talent to be the next top goal scorer in the NHL.
Sale is the toughest to rate for me...he has great vision, IQ and playmaking offensively and sometimes he looks good and well balanced, other times not so much. People criticize his production but I couldn't care less about whether he produced better in the CHL or not, it's about how he looks and how he gets those points. Right now I view him as a complimentary top six piece but he could easily be a Nick Backstrom type of player, he'd probably play well with Shane Wright offensively.
I agree that they all probably have a decent chance to hit top line, and there's also other guys like OFM and Nyman who have an outside shot too.