Since the 1960s there have been great Olympic All Around duals/rivalries that have defined the gymnastics competition of that year. Which duo will form part of the rivalry that will surely exist at the Rio Olympics? I'm sure some people have names in mind and some of those names are for sure not even going to be there but are big at the moment.
Some of the great rivalries that existed before were: VÄra ÄĆ”slavskĆ”/Larisa Latynina, Ludmilla Tourischeva/ Olga Korbut, Nadia Comaneci/Nelli Kim, Yelena Davydova/Nadia Comaneci, Mary Lou Retton/Ekaterina Szabo, Yelena Shushunova/Daniela Silivas, Tatiana Gutsu/Shannon Miller, Lilia Podkapayeva/Mo Huilan and many more. The more recent are obvious and fresh in our minds Liukin/Johnson and Douglas/Komova.
The fact is that every cycle a duo has emerged to challenge each other into a higher level of gymnastics. Since the CoP was changed to an open ended scoring system the All Around champion has been only decided by less than three tenths of a point. The assumption would be that the champion would be decided by a wider margin but the opposite effect is actually occurring. The difference between the champion and the runner up are almost as close as before the change in the code. Although, I certainly doubt that something like Gutsu/Miller would occur again but Wieber/Komova in 2011 showed that it can happen. I thought that given the way deductions work these days it wouldn't go down to the hundreds of a point. The difference in 2011 was a mere .043 and only .012 in 1992.
Here are a few of the gymnasts that will take part in the dual,
Simone Biles

Simone has the potential to win the All Around but her artistry is seriously lacking and while the code was previously oriented towards that angle it is now swayed back towards artistry. The CoP has added lack of artistry deductions and other elements to weigh down the scoring advantages that some muscular gymnasts have. She might end up winning Worlds but then have an Olympic judging team nail her with deductions that were otherwise being ignored.
Strength: Physicality, power, big skills
Weakness: Zero artistry, lack of seriousness, weak toe point
Larisa Iordache
Larisa is a gymnast that has wanted to challenge in an All Around and has fixed up her weak apparatus but is still not enough to win. If she wants to have her name up on that medal podium then she is going to need an Amanar vault, she's capable of it too. Will she put her best skills out there or will she stick to what she's known to do?
Strength: Endurance, energy, health
Weakness: Inconsistency, bars, composure
Aliya Mustafina
The current real challenger to Simone is Aliya, she is the only person that can have a realistic shot at winning - not Kyla and not Larisa. Aliya's strong enough on all apparatus now where as before she was weak on beam but that is not the case anymore. Winning the beam title in 2013 is going to elevate her reputation with the judges. It will also come in handy as this cycle is the cycle for beam like 2008 was for uneven bars.
The biggest scores will likely still come out on bars but the second highest marks will probably be from beam. If that turns out to be the case then Aliya will have two good apparatuses to draw massive numbers from.
Aliya's big challenge will come from within her own team if youngsters come along and snatch her all around spot or if veterans like Komova come back strong. Aliya could win the all around or not even be in the picture.
Strength: Consistency, form on bars, mental stability, intelligence (she is known to calculate her D-score while she's performing)
Weakness: Twisting form, endurance, age
Bailie Key
The strongest non-senior gymnast competing to come out of this cycle is US junior Bailie Key. While her scores are on the low side when compared to a senior she will have time to catch up. Word out about her is that she's training an Amanar vault and judging by her great double twisting yurchenko is bound to be true. She is currently recovering from an injury and while it may sound like nothing could limit her future development or take her out completely like Ohashi.
Bailie is pushing herself hard when she can easily win by going 75 per cent. I'm thinking of Aliya doing an Amanar vault when she could have won without it and then injured herself on it. This is something that could happen to his youngster but it could go okay for her. I really want to see how she challenges Simone because Kyla is not a real threat.
Strength: Form, youth, toe point.
Weakness: Lack of difficulty, experience, bars