Level 1. Strength based character or monk.
A monk is especially good at that, sonce they can dodge as an action and then use unarmed strike to initate a grapple.
But a heavy armor user is not bad either. A fighter can easily have 16 AC and a long sword in one hand and nithing in the other. And...
You can spend a feat on defensive duellist and use a rapier (which is active) Or use a shield which is a bit more passive. Or you can use rapier and shield so you are really hard to be hit.
You can spend another feat on sentinel. But if you are a strength based guy, you can just use unarmed...
Which is just not universally true.
There are always situations where one person sacrificing damage for defense or control is a net positive for the action economy.
Granting disadvantage to an enemy is quite often more reliable than giving advantage.
If they attack you with +7 against AC 19...
You can grab and push on opportunity attacks, take sentinel as a feat. You can put yourself before a squishier target.
Protection fighting style also works. Blademaster has some options.
There are barbarian subclasses that are sticky.
I think the error of many offensivw focussed people is manyfold:
Assumption 1:
The nova round kills every dangerous foe before they can act.
This is not necessarily true. Having some good defensive options ready helps ensuring you get your turn.
Assumption 2:
Everyone builds the same.
If...
That argumentation does not track. I'd even say that you can make a case that if your offense is not strong enough to reduce someone to 0hp, having a strong defense is better. If it prevents you from going down.
Ah ok. Focus vs divide. Yes, I agree. If it os possible, focussong one down is...
It won't increase hp by a lot.
It is effectively giving:
D6 classes standardized +2 hp per level.
D8 classes standardized +3hp per level.
D10 classes standardized +4hp per level.
D12 classes standardized +5hp per level.
All instead of con mod to hp.
If I would redesign the game I would...
A wizard with 2 hp + 1 per level. Who should never get hit.
I think con should not be a stat anymore. Or at least not influence total hp. There are no skills attached to it. Maybe it should affect starting hp and recovery. Not HP each level.
Maybe I will try at some point:
HP = max hd * level...
The game is not all about damage. But batllesmith and artillerist are quite competitive in the damage department.
The armorer is tanking a lot, so others can do more damage.
My 2014 armorer used to have heavy armor mastery and an AC of 23 and a lot of THP. P/B/S damage couldn't get him down.
Specialities had 2 iterations. Maybe 3. And they were transformed to feats.
I am glad proficiency bonus does not start at 1. Actually I think they should have rounded up instead of down and have it start at +3 and going up to +7.
I agree with many things of this post. I however think that designers are allowed to have favourite things and are allowed to try and make them liked by the crowd.
At some point one needs to make decisions on what to iterate and what not.