look both awesome

Well about teh "city is too clean and that's boring" I have to say one thing: Acording to the developers this is kinda distopia, where the city is under control of a strict force (UPD or UDP was it?) So i doubt people is free to go and dirty anywhere they go... I think of it like a more cheerful and colorful version of North Korea (that country is as clean as grey).

And second, the developers recently said that the damage on the city (most part of it) will remain through the game, So if You want a chaotic  dirt looking city is up to You to make it possible :) If that doesn't sound fun I'm not sure what would...

BTW, And seriously the Division was running on a PS4 Dev Kit? If true, that would be beyond awesome... Watchdog was already awesome last year, and this year too, but The Division took the generation a lot ahead, if this is what we get on the first year of the console, WHAT could we expect in two or tree years later?

They did ? 

Well, then I can compare objectively.

Particule effects were amazing on Second Son. I like the graphical style a lot, and I do prefer a pretty graphics over hyperrealism.

That said, The Division backgrounds are less empty. The world feels more lively. The snow + wind effect looked freakin cool too. The UI (the watch) was amazing also, it feels realistic, professionnal, and easy to use. Clothes have a realistic look, and hair are avoided as every character has some sort of hat. The hero's beard, tough only texturing, is really well made too.

Back to SS, clothes are less rigid, facial animation is a real plus, and I think that's the greatest revolution over PS360 (A lot of cutscenes looked dumb on PS2 era, PS3 looked better but still lacked emotions, even on prerenderd cutscenes).

Again, particle effects and big animation makes everything. Just compare Fez's pixel art and Metal Slug's. Fez looks like the slug there.

So second son is the winner to me, despite the levels (or world) that will probably look empty.

Edit : Compared to The Division

Infamous for me. Although the division looks really good too but a little limited on how much of the city can be explored because it's a shooter. e.g climbing rooftops like in infamous. I think it might be just a matter of art style. I like Infamous better.

I didn't like the first Infamous so I skipped the sequel. Mainly I didn't like the humour and atmosphere, the story didn't make sense to me, and the missions were simple and boring like they are in many second rate open world games (Borderlands, Saints Row, Just Cause, Dead Island).

The series has potential though.

I think the first one's character was Cole. Was he is in the second game too?

How about Second Son? This one seems different. Is he Cole's second son?

As other people have said, but I'd like to expand on, Second Son is probably being developed by a relatively small team at Sucker Punch.  If you read about the development of Infamous 1 in this article:

So, what is the size of your team?

If you counted everyone from our IT guy, to the front desk person, to our contract QA guys, it's about 60 people. 

So, how long has inFamous been in development?

You know, we've been in development a little over three years. It's a long project for us. It's, you know, we're not the biggest team and when we wanted to do this we kind of knew where the budget was going to fall, and we actually asked Sony if it was okay to do a smaller team, three-year plus thing rather than a "let's try and cram it out in two years and get big."

As such, I'm not expecting Infamous to have mind-blowing graphics because it doesn't seem to be the way Sucker Punch develop things (even though it'll have been in development for about 2-and-a-half years rather than 3 like Infamous 1).

Comparatively, Ubisoft do go big with their titles.  Look at how many people are involved with the development of things like Far Cry 3 or Assassin's Creed 3.  Multiple studios; hundreds of people.  I'd imagine The Division is more akin to this.

Undoubtedly, I think The Division looks better.  It looks absolutely stunning.  Infamous looks more than good enough for me personally, though, and I think Sucker Punch have really stepped up their game for the new gen (the difference between Infamous 1 & Infamous SS is startling).

Are you sure the Division game was running on the PS4?

The gameplay was on PS4 this was confirmed and you can see the buttons pop up during gameplay.

the division has an UC feel.

There was not PC version announced.  No point in running the game on a high end pc and not announce a pc version. So either it was running on a pc with pretty much the same specs of ps4 or it was running fully on ps4 hardware.  Either way we will be getting those graphics on the ps4 and xbone to.