i think semantics pose indeed a problem... what is an iconic jump combo?
in Plushy's time, he was the master of the 4t-3t and we could say that it's his move... but now, it's a pretty common move and yes, some of us think that Patrick's version is more aesthetically pleasing by its lines and air position. So why can we not say, if some of us believe Patrick has the best version, that it is iconic? Simply because it's super common... so i agree with you and others who are debating what iconic means here... is it a textbook flawless version of a common combo, is it a combo that was unique in a certain period of time and is still pretty rare, like Midori Ito 3A-2T or is it something quirky as Jill Trenary's one foot axel-3S?
I think that we are just being really loose about what iconic means here.... we are just stating combos that we liked a lot

or that we thought were pretty cool when they happened... as a matter of fact, nowadays, there is pretty much only one combo that is extremely rare right now 4Lz-3T

and I'd say that right now, Jin has a hold on the iconic combo
I agree with you though... Plushy will be remembered for his 4T combos.... Patrick will be remembered for his edgework and powerful gliding on the ice... Lambiel had an okay 4T but all we talk about now for him, and he is relatively close in our memories are his gorgeous spins.... they were iconic...
What do we talk about for Daisuke : his performance and interpretation... we would not mention any combo for him... yet he was a strong all around skater...
What will we talk about for Hanyu? Probably the transitions into the 3A and 4S... but he is not done surprising us... and we may end up talking about his 4Loop... or who knows what
It's late... I am making this post longer than it should but in any case, I do agree with you here... however, the whole thread, if it does feature iconic combos, also includes posts that would be closer to "what is your favourite combo" or "who does this combo best"
finally, one could say that the 4t-3t combo is iconic for patrick because that is how he went from a contender to the world podium to 3 times world champion... when he included that combo in his programs, he became more than just the edge guy... he became the skater who had the quads and yet had superior skating skill... and that paved the way to other skaters who followed his path, and even went further in terms of technical content.... it did change the sport in an important way.... to be a devil's advocate, if Patrick had not brought in the 4t-3t, he definitely would not have won world championships, and yes, in that case, he would only be remembered as Mr Edgework... but that combo defined his career... and led the way to what is skating today.... so we can see it as a defining move for Patrick, not only for its quality of execution but for how it shaped his career and brought a generation of skaters with quads who actually work very hard on skating skills...
Patrick's 4+3 was beautiful but I don't know a reason why it is iconoc....Many skaters landed in it in the past and in recent years. I believe Patrick's edgework is iconic! If the FS fans will talk about Patrick in the future, they will remember his edges..I'm sure.
Do you remember?
http://web.icenetwork.com/news/2014/06/16/80059990/
"After three weeks of voting, including a final round that pinned him against some of the most iconic figures in the sport, Plushenko has won icenetwork's "It's Your Move" contest for his legendary quad combinations.
The feat was not easy. Of the more than 750,000 votes cast in the final round, 25 percent of fans chose Plushenko, helping the Russian hold off Yu-Na Kim's 'Yu-Na camel,' which took home 23 percent of the vote. Plushenko and Kim were the unofficial co-favorites entering the final week of voting after each tallied large waves of support in the opening round of the contest.
The victory is a lasting testament to Plushenko's pioneering of the quad combination, which he championed throughout his career. Despite the sheer difficulty of combining multiple jumps to a quad, he attempted -- and, more often than not, landed -- the moves on the grandest of stages."
http://mlb.mlb.com/icenetwork/its-your-move-results.jsp