IMO Teela DOES have to compete with She-Ra in these arena's in order to take the title of the most Iconic Female character from the entire Masters of the Universe franchise. They are a part of the same universe of characters and if Teela was the Iconic Female character she would be the focus of these branding opportunities, but she is not. She has only ever sold as a supporting member of the MOTU brand! For a short while before the cartoon series she was the lead female but from the moment of Filmation's creation The Sorceress would have been the lead IMO, that is until She-Ra's inception. Teela is no more than an important character who supports her lead character, similar to Bow or Glimer support She-Ra. To a pre filmation fan I can understand this argument as she was the Goddess, and then Teela the clone of the Goddess.
However, that cannon is not what took MOTU Global. It is commony accepted within this fan comunity and in the wider associated communities that would be intrested in these matters that The Filmation MOTU cartoon is and was the vehical that took the brand to the masses. So the Teela that the majority of people saw and knew was a support character. Even though she appeared in one episode of NA and the live acton film, where She-Ra did not She was still a supporting character[/B] for the main character He-Man. The filmation cartoons ARE a unified universe and even the Sorceress would rank more highly than Teela.
She-Ra in all of her appearances never played second fiddle to any character ever!!!! But Teela has always done so. She-Ra is more powerful than Teela, She-Ra is 10,000 more recognisable with the public. This make She-Ra more iconic!!!! If I could liken your argument to anything it would be like saying Lois Lane is more important to the overal DC Comics brand than Wonder Woman. Now this would be a fair coment when only looking at Superman's specific story, but within the entire DC brand of characters there is no way that Lois Lane stands up to Diana. Diana is the iconic female heroine of the DC brand Just as She-Ra is the iconic femle heroine of the MOTU brand.
The question being asked here is not who is the most important female character within He-Man's personal story, but it feels to me like you are pushing that premise in these arguments. But trying to apply this premise to the entire brand (which is everything all in) does not make logical sense IMO. Teela has NEVER lead the brand, she is a supporting character in every showing she has ever made. she always helps He-Man in leading the brand.
She-Ra has never been a supporting character, her story played out as one of equal importance to He-Man's back in then 80's, just as it is now in MOTUC. In all of her 93 cartoon episodes, numerous books comics ets she stands toe to toe with He-Man in importance,and as a co leader of the brand. It just does not register in my mind how you can honestly argue that a supporting character is more iconic than the premier female character of this unified universe.
Were you asking the question who is the most iconic female character in He-Man's story then I would say Teela takes the top price, but the brand is more than just He-Man's persona story it's bigger than that. I stick to my guns. Lining up all of these characters and the overall story, Teela does not stand up to She-Ra in terms of recognisability or importance neither does she have any where near as much comerical viability.