Which type tends to be the laziest?

[Sanguine Miasma]

My sister who is IEI. Her laziness even byproducts stuff [she is Se suggestive so she gets downplayed by short termed forces] that forces her towards further laziness regarding future.

[Luk]

It depends what the judger values.

I'm too lazy to work hard/fight for what I want.
I'm too lazy to live productively.
I'm too lazy to deal with others' internal emotional issues.

Some other people are too lazy to think through the consequences of their actions, because it's tedious.
Some other people are too lazy to encourage/maintain a pleasant atmosphere.
Some other people are too lazy to take the initiative when a crisis is looming.
Some other people are too lazy to look at things from others' perspective.
Some other people are too lazy to try to understand the things that affect them.

Lots of those things aren't conventional laziness, but when you're trying to convince someone about something and they resist because they can't be bothered, it still feels like they're being lazy.

Everyone I met is lazy, in different ways. I'm (usually) the laziest about the things they value.

[Computer Loser]

In my opinion weak/undervalued se/te types

[WinnieW]

I guess that in most countries laziness in people is the opposite of industriousness or productivity.

But not all people value the same form of productivity. What is valued as human work is based on the needs and interests of the people, at least in countries with a market economic system.
That means in terms of Socionics, basically that use and to some degree and follow the rules of the society and job expectations are considered as not being lazy.

[Sanguine Miasma]

alphas are supposed to be default quadra for harmonizing subtype in DCNH and further on least energy energy output to most goes like H(alpha)>N(delta)>C(gamma)>D(beta).

[para]

Ip is 'conservation of energy' after all. :>

[ContractedCriminalboy]

I too have an IEI sister and by God is she lazy, only works hard at cleaning her room then doesn't wanna do much else. So I would agree IEI. I'm situationally lazy, as in if at home will literally lay around doing nothing productive but if something interests me or I have to do something then I get up and bust my ass harder than everyone else in the room, assuming no LSE's are in said room. I enjoy new experiences that get me out of ruts so would rather walk several miles to a destination if it means getting to explore new scenery than take a bus there if it means having to take same old boring everyday route, get what I mean?

[Kiba]

I also agree on IEI. I think is Ni with ethics with low Si and Se, especially females. They can even get really upset if they are "forced" to do something.
However I've known males IEI who are not that lazy (but they hate to clean, for example). So, since most that are voting for IEI Female are ppl of Ne/Si quadras (which is also my experience), I guess it depends on the types of ppl in their environments and else.

After IEI, I've heard of SEI being lazy too.

I personally can be hyper active at one second to be inactive the next one.