Barbarian: I like the extra skills that come with Survival Instincts, but I'm lukewarm on anything that doubles a proficiency bonus. Instinctive Pounce was fine until I got to the "doesn't provoke opportunity attacks" part; I'd prefer to leave that part out
What about that line hits you the wrong way so to speak? Just curious? So many mobility options have that as part of their standard boilerplate in 5e that I never thought to question its inclusion here.
Cleric: I like all of these options except Blessed Strikes...too much paladin overlap, IMO.
Blessed Strikes is just (basically, I know it's slightly different) a combination of the two different 8th level ability that all domains have. 7/12 domains already add 1d8 of some damage type at 8th level to their melee attacks and the other 5/12 add their Wis modifier to cantrips. This gives the flexibility as an example to play a more martial focused Trickery Cleric or a more caster focused War Cleric
Monk: Monk Weapons seems unnecessarily fiddly, but it will work I guess (I would have preferred something like "choose 5 weapons from the following list...") The Ki Features look fine, but I don't foresee my wife picking them for her monk.
Ki features are always/free you get all these things, so she wouldn't have to pick them. Just like all monks get Flurry of Blows, Patient Defense, & Step of the Wind at 2nd level. These would just be MORE things they get at 2nd level to go with the core 3.
Ranger: Ugh. I like Deft Explorer, but very little else. Favored Foe is unnecessarily clunky (why not just make it once per short rest?) and as for everything else: why not just play a druid?
Favored Foe likely won't look like that in print when it gets there, but I get that it's clunky.
I get what you're saying about some of the other features, it definitely brings a lot of that feel/concept in, but I think there's space for both Rangers as more Druidic just as Moon Druids step on Rangers toes in a lot of ways related to combat. It's the nature version of Fighter (Eldritch Knight) and Wizard (Bladesinger) to a degree.
Plus I really like what they've done with the Beast Master companion options.
Sorcerer: I like the expanded spell list, but Spell Versatility feels out of place for a sorcerer (What do they do, replace their blood every long rest?) but it doesn't really break anything. Font of Magic options all look fine, nothing sticks out. The new Metamagic options are fine, but I'd probably drop Seeking Spell.
Re: spell Versatility - Welcome to the club, prepare to be pelted. So you're ok with it on Bards/Warlocks, but not Sorcerer?
Warlock: This is my favorite part of the entire 13-page document. I love the expanded spell list, Pact of the Talisman feature, the new invocations, the whole thing.
Talisman seems very... underwhelming to me as a PC option, though I could see it as a Mentor/NPC choice kind of thing.
Fighting Styles: Versatility is a good idea, and I like the new styles (but I predict a lot of pedantic arguments between my players about the differences between "being hidden" and "unable to be seen").
Agreed... those debates are coming...
Granting a second attack to clerics at, about , say, 7th level would go a LONG way towards allowing Fighty clerics to shine.
I could see "enhancing" or "replacing" a Cleric of the War domain's 8th level Domain Ability to either add or be Extra Attack. At 8th level, it's certainly not breaking the game, and it's not going to be a "dip"