These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Ensemble Darkhorse: She's the most prominent and popular black superhero of all time, and Marvel's most prominent female superhero.
Mary Sue: In a similar vein to Mary Poppins, Storm's qualification for this is proof that Tropes Are Not Bad. However, being exotically beautiful, fantastically powerful even by superhero standards, a master hand-to-hand combatant, a gifted leader, and beloved by everyone who meets her (even the bad guys) is going to create this impression.
Writers adding things like being related to ancient Egyptian wizards and coming from the bloodline of the first shamans doesn't help matters either.
Pandering to the Base: With the much hyped post-Avengers vs. X-Men merger featuring more X-Men characters joining various The Avengers team, the reason given for the upcoming dissolution of the Black Panther - Storm marriage (not being able to feature the two characters in the same book) comes off as False Dichotomy. Fans have emerged on both sides of the issue some vocal ones that never warmed to the relationship favoring the break and others that feel the relationship never got the chance to be handled properly.
The fact that one of the first things she does after breaking up with Black Panther is sleep with Wolverine really doesn't help things.