As I said, there are many types of intelligence. You can be a complete genius in understanding language, while very dumb when it comes to history. Or you can be a genius when it comes to using magicka, while barely being able to speak your own language.
If you only had one Intelligence attribute, and had it do more than simply increase your magicka pool, how would you differentiate between a character that really knows their history and lore, and one that knows how to use magic really well? You're forcing characters into being intelligent in multiple ways through the one attribute, whereas skills and perks allow you to be intelligent in more specific ways.
This argument is a straw-man as you are arguing the descriptive detail and qualification of a person in attributes vs. skills perks. False anology as no one, to my knowledge, is advocating removing skills and or leaned perks from an game, much less this one. More accurate comparison is skills aside as they can/do exist in both scenarios: What better defines the character you are playing: 8 arbitrary and not completely accurate mathematical qualification of a person (str, agility, constitution, intelligence, personality, wisdom, and luck) versus three arbitrary mathematical figures describing people/character via health stamina magica?
If i were to describe new upcoming character as 100 health, 50 stamina character then a 50 health 100 stamina character you have no clue what gender, what race, or the background/history/base abilities of what is being played as health/stamina are so generic umbrella adjectives that a slew of items fall under their purview. The race, gender, I choose to change the visual avatar on the screen is meaningless as health/stamina do not define anything or anyone. Whereas using attributes, or any other system for quantifying an individual, if I were to assign number to the above stats or letter grades, anything you would have a somewhat better picture of whom is being created/described/played. Yes, attributes or any other mathematical system in comparing people based upon chosen criteria will not be all encompassing and can catch every variable or exception, but much like Democracy - it is the worst system there is, except for all the rest.
Riddle me this: what health/stamina (as magic doesn't exist) would you assign: Winston Churchill, Michael Jordan, Pele', Einstein, Barack Obama, and Mother Theresa when each was say, 20. What is the mathematical probability of someone else successfully putting the figures you come up with with the names? Would or would not that probability change if you were to mathematically assign figures to their strength, dexterity, bodily constitution, intelligence, wisdom, willpower, etc, etc?
What excited me about Bethesda's overarching creed "play whoever you want to be, go where you want to go, etc, etc, etc" is precisely my problem with the oversimplification/crude abstractness of the three "attributes" which are very poor descriptors for TES V. I am not playing "who i want to" as every person with the exception of a few points of health and energy is like every other person as the variables are greatly reduced and poor descriptors to boot. I am playing clone version 1, avatar chosen E, next time close version 2,avatar chosen H.
Mordy:'None of those. It would be the 21/18 numerical mathematical figures describing your capability to perform some specific category of tasks. ". My ability to bench press is a bodily ability not a leaned trait, my bodys ability to fight off disease is a natural trait and not a learned ability - please attempt the riddle above and you should see my point.