There's nothing less appealing to me than standard tolkien high fantasy.
Agreed. That's why I like setting like Eberron, and the so called "freakshit" races of 5e.
The A/D thing, actually allow static bonuses/penalties(outside of bless) to exist in the system and stop assuming that players can't do 2nd grade arithmetic.
Strong disagree.
I've played mid-level and high-level Pathfinder. Static bonuses kill the game. Every modifier adds mental bloat and slows the game down. A +2, that's nothing. When a turn ends up as "I attack, +2 for flank, -2 for off hand, +1 for the duel wield feat, +2 from the paladins aura, is the bard singing? that's +2,.." and then a player jumps in about how he forgot to add the aura bonus last turn so his attack would've hit. It gets fucking exhausting. A/D puts an end to all that.
Now, I do think you could have double advantage/disadvantage, but I don't know.
Infinite cantrips are also complete and utter horseshit,
Casters that can actually cast. Unthinkable!
but also the return of vancian casting I don't take as a positive improvement.
Agreed. Something like a mana system, or some kind of dice based resource would be good I think.
Another pet peeve with spells is spell level. Either spell level should be character level, or they should ditch the concept and going with tier A, tier B, etc. Spell levels are like THAC0, fine for people immersed in it, but utterly confusing for newcomers. It's not even a difficult concept, just a poor choice of name.
Subclasses are also unbalanced garbage.
I don't know the problem with subclasses. I thought it was fine and a good way to customize a class without making new classes every five minutes.
It's also the least of the games problems when you have things like Ranger being completely worthless as a class, or lots of spells that are either useless (true strike) or game breaking (goodberry removes survival campaigns).