Wich notebook should I choose?

I think that better will be the first one. Now if you have about 8gb ram its better. My win8.1 after run have about 2gb used ram so in 4gb yo have only 2gb left for games ;)

I'll use win7, but more RAM is always good, nice point.

Bump, any more notebook experts out there?
Need a few more opinions to make a decision.

None, don't buy HP or Acer, very bad quality and cheap brands trust me. Spend little more and buy a good quality one like Sony, Asus, etc.

Things you will regret from this cheap brands:
-Cheap plastic.
-Most of components are cheap.
-Overheat (probably if you gonna use it for gaming, not in first time, but yes after some use)
-Pre-installed trash software that will cause your computer slow boot(not right after buying, but after sometime yes)
-They don't last long without getting something broken.
-They can put 32bit OS instead of 64bit, which is useless.(can happen in other brands too, better see how much but their OS they has, not just Win 7 or 8)

when i was searching for laptop to buy i saw one amd quad core Toshiba bu it was low like 1.6 ghz and 4 ram, bought on same price acer with core i3 2.3ghz and 6 ram, so i think the corei3 is better

I'm not an expert, but with i3 on that store this one is better and cheaper.

In which world is i3 superior? 0_o

The i3 is literally cheapest and worst Intel processor, if you were picking between AMD and i5 or i7 then it would be the question. With i3 it isn't.

Go for the one with the better cpu. You can upgrade the hdd and ram if needed later.

Not sure what your budget would be in USD, but I would go with one with a good cpu. Toshiba is the most popular brand of laptops at my college because of their high quality and lower prices. Personally, I have the following computer from Best Buy (Exclusive to Best Buy)

Toshiba Satellite P75-A7200

It has:

2.4 GHZ Core i7 processor that can turbo boost to 3.4 GHZ.

8 GB RAM

750 GB HDD, with space for a second one.

17.3 inch 1080p HD screen

USB 3.0 Ports x4 with 2 of them having sleep and charge capabilities.

DVD writer. SD card slot. HDMI output, VGA output.

Hard drives & RAM are easily replaceable & upgradeable, CPU's are usually not so, in laptops. Go with the one that has the better CPU.

I would probably get the one with i3, because you'll be able to put in another RAM module if needed anyway. i3 is faster and it must run cooler, too. By the way, I own a Probook 450 with i3-3120m processor and Radeon HD8750m GPU, I'm very satisfied with its performance and build quality - awesome for its price. The CPU's max temperature was 70 degrees for me, but GPU's temperature was about 60 while playing CS:GO. The settings are 'Very low - Low - Medium - High' and I get stable 120-150 fps, however it drops to 50 when I'm inside the smoke.

Oh, and Windows 8.1, Skype, Steam and all the drivers takes up 1.3 GB of RAM for me, so 4 GB IMO is enough.

Thanks for all the help!
I decided to inject a bit more cash into the notebook, so I ordered thisThe i5 should come in handy:)
Quite excited to get my hands on the baby:)