Numminen played for us for 15 years, was our captain, and is arguably one of the most underrated defenseman of all time.
Tkachuk played with us for 10 years, was our captain (although depending on how you ask, not a very good one
), scored 50 goals twice, and led the league in goals once with us, and is arguably a top-10 American player, all time.
Roenick, who has the weakest argument of three, had most of his accomplishments in Chicago, but was one of the most notable players in the league during his time here, helped put Phoenix hockey on the map, and is arguably a top-5 American player of all time.
Had all three played in a larger market or won a Stanley Cup, I think they would all be borderline Hall-of-Famers, and Roenick who actually did play in a notable market in Chicago, very well could get in the Hall-of-Fame in the next several years.
Yandle on the other hand, is a super cool dude, who scored 50 points for us twice. He needs to come back and play at high level for several more years to have a legitimate argument at getting his number retired, IMO, and it even then, it would mainly be because of sentimental reasons.
I'm not taking shots at Yandle or anything, I just feel he has a significantly weaker argument than Roenick and Tkachuk, both of whom have somewhat weak arguments to begin with (Roenick especially).