What about the El Classico couple of seasons ago when the game was deadlocked, Iniesta was playing down the left and it wasn't working, he amde the change, came to the middle and destroyed every remaining shred of Madrid? You have to be the only person who thinks Iniesta of all people can be out of ideas just because he was thwarted by an extremely strong Bayern team, and in particular an individual Javi Martinez who had a great game against him. Right now there is no one in the world who can think outside the box more than Iniesta.
It wasn't just against Bayern. Against PSG they desperately needed someone to step up but Barca were terribly limp without Messi on the pitch. People will say Iniesta was Barca's best player until Messi came on but that's besides the point, they would have gone out of the CL in that round if not for Messi's contribution and Iniesta could do nothing to prevent that. Against Milan in the first leg they were similarly ineffective and he couldn't do anything to make a direct impact on the game. That's not just picking out the odd game, that's their entire knockout phase. It's the first knockout phase in a while where they've come up against tough opposition in both the last 16 and quarter-finals, actually. If you look at the knockout games they've struggled in/failed to win during this decade with Iniesta in the team you have:
Stuttgart (1-1, away leg, last 16, 2010)
Arsenal (2-2, away leg, quarter-final, 2010)
Arsenal (1-2, away leg, last 16, 2011)
Milan, (0-0, away leg, quarter-final, 2012)
Chelsea (0-1, away leg, semi-final, 2012)
Chelsea (2-2, home leg, semi-final, 2012)
Milan (0-2, away leg, last 16, 2013)
PSG (2-2, away leg, quarter-final, 2013)
PSG (1-1, home leg, quarter-final, 2013)
Bayern (4-0, away leg, semi-final, 2013)
Bayern (3-0, home leg, semi-final, 2013)
In how many of these games do you think Iniesta stood out amongst the rest and almost single-handedly turned the tide of the game? His best performance was probably against Chelsea at the Camp Nou because of his goal but he was pretty peripheral by his standards outside of that. You've been vocal in the past about how Zidane's big-game player tag is over-stated so I'll suggest the same about Iniesta. Zidane's had more poor games in the biggest matches but Iniesta's had much fewer games where he's been clearly better than the rest of his team.
Iniesta's had plenty of games where he's been the best player on the pitch in big games but that's generally come at a time when the team is working in perfect unison. His performance has often been just the cherry on top rather than the decisive factor. If you look at his very best games you'll generally see Xavi right at the top of his game conducting things alongside him. Zidane had a lot of support in midfield from great players (Davids, Deschamps, Vieira, Petit, Makélélé etc.) but none of them came close to Xavi's ability to dictate the pace of the game so generally he had to take on more responsibility for controlling things
and making the difference. In the game against Brazil in '06 Zidane was their creative fulcrum as well as the man controlling the midfield and in the '98 final he was their goalscorer and their sole creator. People talk about Zidane's two goals in the final as if that's all he did but he created more in 90 minutes than Iniesta did in 120 minutes in the World Cup final. He rose above his team-mates in a way Iniesta rarely has. You could argue that's because he didn't have to but then the CL knockout ties above suggest there's been more of those occasions than is often remembered.
I think it is unfair to pick on a few crucial games where Barca has faltered and point fingers at Iniesta. What Iniesta lacks over Zidane is not the big games performance, I'm Zidane himself has failed in many more big games in his career than Iniesta ever has, especially on the club level where he has only won one CL title, what he lacks is the the romantic "moments" in Football that Zidane has produced - two goals in the WC final, THAT volley in the CL final, coming back from retirement and leading a poor France team to the Final. Zidane's profile as a player and superstar status meant that he will receive more hype and nostalgia, whereas Iniesta has been doing his job quietly and consistently for Spain and Barcelona, racking up the titles in the process. Its like that discussion I had with another guy at the newbs on Messi and Ronaldinho. Ronaldinho has more "moments" in Football that will forever be embedded in people's minds, people will look back at it with nostalgia and romanticism, but he is definitely not the better player than Messi.
Like that half-volley v Chelsea in stoppage time in '09, the following MOTM performance in the CL final and the only goal of the 2010 WC final in the 116th minute amongst others? Zidane had a profile because he rose above the rest of his team-mates and dominated games single-handedly. Iniesta has never had the opportunity to do that for Barcelona but I do think he could have done so for Spain. He showed glimpses of it in the Euros but that's it. Romanticism is a huge part of football but you seem to be grouping it alongside nostalgia as something that clouds people's minds and distracts them from the truth. Strange.