What skill do I raise to make an agile swordsman? Give me a build with nothing but skills and tell me how its different from a hulking barbarian?
Keep in mind barbarians use light armor too, if thats even still a skill.
And there isn't going to be a magic perk for, "agile swordsman, click this." There may be some perks that cause some differentiation, but its not likely enough to completely define a character.
And the bilnd trust in bethesda that perks are enough to fully define a character is saddening, I had that with Oblivion, I learned (not my favorite TES game)
The difference isn't going to be in the skills. It will be in the perks you choose. A Barbarian would likely use the Two-handed weapon skill while the agile swordsman uses Block and One-handed and that's the largest difference in skills. The agile swordsman would pick Light Armor perks that improve his mobility if there are such things, and would pick One-handed perks which increase the speed of his attacks, the critical chance, etc. The Barbarian would pick perks to reduce damage taken on hits, bleeds and raw damage increases for his two-handed axes.
Once information on the complete skill list and perk lists is out, I'd be happy to make a more accurate build.
What would be the difference with attributes? Is your swordsman not going to increase Strength? How are you increasing Agility, by grinding Security and Sneak? The difference between the two classes here is in two attributes. The difference between the two classes with perks is in potentially dozens of perks.
"not likely enough to completely define a character." How do you know that? There are 280 of them! There's plenty of opportunity to choose different perks with different characters. I don't see why they would make 280 perks but make any 10 of them the exact same. If there's 280, there's a lot of variety, and by extension characters will have a lot of variety.
You write about our blind trust, what about your blind dismissal of the new system?
Ah yes, and we do still have three "attributes". The agile swordsman would level Stamina more often than the barbarian, who would focus on Health.