agree with most.PCs with unusually high ACs and paladins with a big boost to all saves impact the game far more than characters investing in saves.
Magic shield bonuses bracers of defence and rings of protection should not stack with other magic bonuses. Paladins bonuses to saves should be halved.
Paladin aura should give +1 bonus when you get it, +2 at 11th level, +3 at 17th level.
aura range should be increased, 30ft at start, 60ft when improved.
armors and shields should not have +X bonus to AC, only unique cool features.
+X might add damage reduction instead.
instead of +1 AC, you get 2 damage reduction from every attack.
weapons should not have +X attack and +X damage bonus.
instead add +Xd6 damage only.