I used to be a Widow main, but are now playing Tracer more often.
My Tracer hours are probably around twice my Widow hours at this point (if you count time in PUGs and such which doesn’t appear on your total play time).
I find Tracer to be overall much more challenging to play, but i see just as much potential if not more than Widow.
Both can create space, and have very good pick potential, although Widows is higher.
Tracer on the other hand has the ability to get around shields and are more capable of creating opportunities rather than just take advantage of them.
Because Tracer only has 150 hp and the spread forces her to fight close range, she will have to keep track of close to every single enemies position and cooldowns on top of her own, if she wishes to stay alive and deal any meaningful damage while she blinks around in a fight & looks for opportunities.
She also have to be able to do 180’s with great precision pretty much instantly. In fact you need to be able to turn to any angle with the same precision for every single blink.
She also have combos you need to be well practiced in, like melee blinks, blink bomb blink/recall and so on.
To hit one of these you need to know the exact blink distance and how much you need to turn, and it should happen so fast it appears almost instantaneous.
Widow on the other hand stands at long range where she can see most of the fight, and only really have to worry about the few heroes who can contest her. She has close to 0 combos that needs practicing, other than maybe Jump scoping which really isn’t that difficult to time right.
She is mostly about being able to find angles and click heads. Which is one of the big reasons she is seen as a high skill ceiling hero.
But to say that heroes like Widow has a higher skill ceiling is very arguable.
Tracer simply requires a different set of skills and i would argue is well deserving of being called among the highest skill ceiling heroes.
I will happily agree to not call her the single highest skill ceiling hero, but simply group her with the others.