Oh, I see what you mean. I can actually 100% agree with you. Toon link can just show so much more emotion than most other Links Though I think that SS Link also pulls off what you just described very well, particular with how much of a role they gave Zedla in the story. Personal, I actually really like Toon Link (or WW Link at least). His just such an awesome character plus his super adorable. And honestly, I don't mind that Toon Link is in Smash Bros.Not saying I don't want Young Link back, just saying that Toon Link a cool bloke ( I think I like him a little ore than normal link in some cases) Though, I'm just really disappointed how little they have actually done with him. I mean, they could have kept him a semi clone, but if they had just added a few unique things to him (i.e Jab from PM, sliding Spin Attack) and hadn't nerfed him as much, I'd be less disappointed in Young Link being in Smash.Well, when you get down to it, all of the Links are pretty bland characters. That's one of the major drawbacks to being a silent protagonist. Since the character can't talk, and "character" they have has to come from how they react to the world, and how the world reacts to them.
In this respect, this is where the unique art style of Wind Waker is greatly beneficial. The more cartoon-esque look of the game allows for a lot more unique visual expressions out of the characters, allowing them to show a wider range of feelings and emotions without the need to use dialogue. Link himself benefits greatly from this; whereas older Links usually had only one or two facial expressions total, Toon Link is able to express joy, anger, fear, sadness, etc, and do so prominently thanks to the distinct art style. Being able to visually show all those emotions goes a long way into making Link feel like an actual human character, and not just a human-shaped block of code for the player to control.
What's more, Wind Waker presents a scenario in which Link is allowed to actually show some semblance of character. You see Link go into a blind rage when his sister is kidnapped. You see how torn up he is about leaving his home and his grandmother behind. What starts as a kid regretfully but adamantly leaving his home to try and rescue his sister eventually grows into a young man strong enough to leave home and go off on his own adventure. Little touches like that really do make a difference in taking a one-dimensional character and giving him something resembling depth and development.
One of the original ideas for the Legend of Zelda series was to tell the story of a boy growing over the course of his adventure. To that extent, I personally feel like Toon Link captured this best.
However, I still think that Young Link is one of the great Link's by far and for one reason only. He has a sadder story than any other Link that exists. His friend left him for no reason, he was force to become an adult to say a world and they force to return to his own time to live his child hood, knowing the future of a doomed hyrule. He had to live the same 3 days over and over again, having people he knew forget him and knowing they were doom while he would be safe. He has seen countless people die. And to top it all off, was plunge into darkness, went to war with the Gerudos and was flood, all because he tried to save. And no one remembers him. No one thanked him for his for saving them. All that was anyone remember was his title as the Hero of Time.
I not sure I explained it as well as I could, but Young Link's story is one of the saddest stories I have ever heard.