I have both and use both, but I get more use out of my non-woodies.
One thing you seldom here Japanese plane enthusiasts mention is that for the truly top end work, the carpenters here have two sets of planes, winter and summer, this is because of the huge swings in humidity here in Japan from winter to summer. Often if you find an old wooden plane (Kana in Japanese) here that is badly cracked, it was most likely a winter plane that was put away without the iron being removed. In the summer due to the excessive humidity, the wooden plane body swelled up and as the iron is not going to give, the wood did. This kind of thing could take many years to happen, repeating cycles of humid and then dry. Having two sets of planes and all the pampering that comes with wooden planes is why they are only used by a very few specialized carpenters and by enthusiastic hobbyists.
A Japanese friend of mine uses this analogy;
The Kana is like an F1 car, when it is set up right, in the hands of a very talented person, there is nothing better on the planet, but it needs a very talented person to drive it and set it up and keep setting it up, like an F1 car.
The western style metal plane is like a Ferrari, Corvette or Porsche 911, for the vast majority of us it will go faster and handle better than we can drive and you can get away with jut having periodic maintenance done on it, but in the hands of a very talented driver they can reach heights that us mortals can only dream of.
I know that some will chafe at the idea that the Kana in it's truest form is better than a western metal plane, but I think they are, with a qualification.
The Japanese traditionally do not work highly figured wood, the don't work tiger maple etc, they work straight grained wood, and a well set up Kana will plane this wood to a sheen that is hard to believe unless you have seen it first hand.
I guess they are kind of apples and oranges
Now the western wooden planes like Toni made or others, they are very useful for making a plane that is a one off or for something that you will not use daily, and in this case they are better than steel planes because you can make them into whatever profile etc you want, on the go yet.
Cheers!
PS no matter what kind of plane you use/buy/make, you have to learn how to sharpen the blades