Comparables
Glenn Anderson was very fortunate to have played on those Edmonton teams (5 Cups) and was a role player in the 94 NYR one.
Anderson was still lower on the list of importance on the teams he played on than Oates was for what it is worth.
Federko was more often the best player on his team than Oates but Oates is more deserving of being in the Hall IMO (and they are good comps too).
Ironically they where traded for each other as well.
The above stated list is more trival than anything else, Oates was a damm fine player in his own right and both Hull and especailly Neely should thank him for being in the Hall.
Hull's 3 seasosn with Oates he had 78, 63 and 61 goals (adjusted) with out him his next best 3 are 52, 50 and 44 2 times).
Neely, while a fine scorer before Oates had a much better GPG rate with Oates (even with less health) than with Janney and his defining 50 goals in 49 games would probably not have happened without Oates.
The Oates / Federko comparison more or less illustrates the league view of Oates. First the trade was not one for one as you present it, rather it was Paul MacLean after a 36 goal season and Adam Oates for Bernie Federko and Tony McKegny. Oates was the prospect, even though he was quite old, in a trade built around three veterans.
With Boston, everyone focuses on the Neely stats but one consideration is overlooked. Ray Bourque. Ray Bourque had his best years without Oates. Even a defenseman with limited offensive skills benefits from a top level offensive center. Yves Racine looked very good playing the point with Yzerman and Lindros. Very weak without.
A top level playmaking center improves the offensive production numbers of all the position players around him.Jean Beliveau, Jean Ratelle, Stan Mikita, Bryan Trottier, Wayne Gretzky, Mario Lemieux and others improve while sustaining the offense of their RW, LW linemates and support d-men. Oates was basically RW oriented - Hull, Neely, Bondra, at times a LW would show flashes but they were not sustainable and the contribution from the d-men did not change in any appreciable fashion.