Okay, reading through the pdf and ignoring the back posts, first impression, go!
Mmmm...... Bard goodness. The College of Swords has a ... strange background to it. I read it, and think, "Oh, hey! I'm a traveling performer? What does that have to do with blades? And how is this different from Valor? Isn't this kind of thing the domain of Backgrounds, not subclasses?" Then, I get to Proficencies and Fighting Style, and I'm all like, "Oh, hey! Dervish bard! Want!" Then, Blade Flourish, and "How can I be a two-weapon dervish if all my bonus actions are taken up by Bardic Inspiration again? This is dumb. Well, okay, these Inspirations are pretty cool, but still not usable with two weapons." And then, we go right back to the Haste-as-level-11-milestone. For the Valor bard, you can use Haste, paladin smites, and Swift Quiver. The latter two don't work with 2 weapons. While Extra Attack is about what I expect, tossing on Battle Magic again feels lazy. Can't we do something different?
And then, the Jester! Roguish bards in a nutshell, complete with a variation on Cunning Action. More bonus actions, though, clashing with Inspirations, but at least it doesn't take up your uses of Inspiration. I do have to wonder why there's this focus on finding otu the truth, though. Feels... oddly forced. Why not just have it as a thieving bard, and be done with it? With the exception of the Cunning Action, this feels like nothing more than a variation on Lore bard. Get three theif-y skills, get bonus spells, get bonus to ability check. Now, Fool's Luck is admittedly much better than Peerless Skill, since it adds to your saving throws and attacks, thought it will come back to haunt you later. We're still working on the same Vicious Mockery as the attack cantrip.
All in all, I'm a bit disappointed here. I was hoping for something new and dramatic, and it feels like just a repeat of the current two subclasses. Admittedly, there's not a lot we can do with just three subclass levels, but still! There has to be -something- more than these.
Now, onto the Fighter! Cavalier is interesting - the mounted knight. I note the fluff is significantly smaller than the bard as well. Bonus skills are nice to see, though they're not going to be ones the Fighter will have a lot of backup in the Attribute department. We also get a return of the superiority dice! And only one ability is entirely dependant on being mounted, making this a pretty good class to take if you really want moutned combat. (Never really seen it myself, though).
Scout... "Hey, remember the spell-less Ranger we posted a while back? Here's how to do it as a Fighter. Now stop complaining, you've got what you want." That's my impression. Moving on.
All in all, rather disappointing. The Cavalier is the only one that's not feeling like a repeat of other existing stuff, and works well mechanically. But how often do we have people playing mounted characters?