Ziggy Palffy was a great player who was always on a terrible team whose NHL career ended early due to injuries. You can't really blame a guy for that. He was definitely the best Islander of the late 90's (probably the only good Islander during the fisherman jersey era).
This indicates Kenny Jonsson is maybe even more forgotten/underrated than Palffy
If those two had played on one of the top 10 teams of the leauge during most of their careers I think Palffy would have been an HHOF:er and Jonsson could have challenged for a few All Star Team seasons.
To add to an if argument is to be made for HHOF for Palffy, one got to remember he played in one of the greatest RW-eras ever. Had he played LW during the same era I think he would have had a few All Star Team selections to show. Or had those seasons in some other era. RW:ers of that time when he got All Star votes was HHOF:ers Jagr, Bure, Selänne (well, as soon as available...), Iginla (most probably...), Hossa (maybe...) and a few great players who had some good seasons against him in Kovalev, Bondra, Alfredsson, young Heatley and so on.
Palffy and Jonsson is two good examples how much playing for an (or a few...) bad team(s) basically your whole career or during an era when your position is strong will effect your legacy.
And maybe it ain´t an coincidence that they both went home to Europe while they still where impact-players (even if Palffy was injruied and needed an break as well...). To play on an contender and compete sure makes for an more fun time and maybe would have cured a bit of that home sickness for them, and in an domino for their families...
Palffy didn´t look out of place in 2010 OG, and that was after a year off and 3 years in the Slovakian leauge. Jonsson was still an top 2 defender in the WC during the last games he played (an peak Shea Weber was the only one to beat him for best defender...), and that after an All Star season in Sweden. I actually think Jonsson could still had played in the leauge just a few seasons ago if he wanted and had an healthy career. He had that ageless style of play. And is still only 41, retiring from the NHL at 29 in 2004.