Looking for portable, long lasting laptop for college

Basics are lightish (<7lbs) and long battery life, but I would like 4 real cores and at least a basic dGPU if possible.

1. What is your budget?
$1600
2. What is the size of the notebook that you are considering?
Anything from 14" to the 17.3" class but honestly 15.6" is probably best
3. What screen resolution do you want?
1080p+
4. Do you need a portable or desktop replacement laptop?
Portable
5. How much battery life do you need?
Need? Probably 4-5 hours. I'd like as much as possible though, willing to pay a bit more for more battery life.
6. Do you want to play games with your laptop? If so then please list the games that you want to with the settings that you want for these games. (Low,Medium or High)?
I'd like to play games but I will be building a desktop also, so a basic dGPU will do here. The 1050 looks nice.
7. What other tasks do you want to do with your laptop? (Photo/Video editing, Etc.)
I'm a computer science major so I'll be working with code.
8. How much storage (Hard Drive capacity) do you need?
If storage can not be upgraded, 1TB total. Any laptop that has upgradable storage is a huge bonus. Also willing to pay some extra for that over a laptop without. I'd like at the very least the OS to be on SSD.
9. If you are considering specific sites to buy from, please post their links.
Newegg and Amazon.
10. How long do you want to keep your laptop?
I'd like to keep it as long as possible, but I could probably upgrade in a year.
11. What kind of Optical drive do you need? DVD ROM/Writer,Bluray ROM/Writer,Etc ?
None.
12. Please tell us about the brands that you prefer to buy from them and the brands that you don't like and explain the reasons.
I don't have a brand preference, but I've heard HP and Lenovo have put unwanted software in their laptops, I'd like to avoid that.
13. What country do you live in?
The United States
14. Please tell us any additional information if needed.
Let me know if you want to know anything else.

The Lenovo Yoga convertibles look pretty nice, though their trackpad has poor reviews. Omens are close, but I haven't been able to find a specific model I love.

The Yoga 720 with the UHD screen is great looking though.

Basics are lightish (<7lbs) and long battery life, but I would like 4 real cores and at least a basic dGPU if possible.

1. What is your budget?
$1600
2. What is the size of the notebook that you are considering?
Anything from 14" to the 17.3" class but honestly 15.6" is probably best
3. What screen resolution do you want?
1080p+
4. Do you need a portable or desktop replacement laptop?
Portable
5. How much battery life do you need?
Need? Probably 4-5 hours. I'd like as much as possible though, willing to pay a bit more for more battery life.
6. Do you want to play games with your laptop? If so then please list the games that you want to with the settings that you want for these games. (Low,Medium or High)?
I'd like to play games but I will be building a desktop also, so a basic dGPU will do here. The 1050 looks nice.
7. What other tasks do you want to do with your laptop? (Photo/Video editing, Etc.)
I'm a computer science major so I'll be working with code.
8. How much storage (Hard Drive capacity) do you need?
If storage can not be upgraded, 1TB total. Any laptop that has upgradable storage is a huge bonus. Also willing to pay some extra for that over a laptop without. I'd like at the very least the OS to be on SSD.
9. If you are considering specific sites to buy from, please post their links.
Newegg and Amazon.
10. How long do you want to keep your laptop?
I'd like to keep it as long as possible, but I could probably upgrade in a year.
11. What kind of Optical drive do you need? DVD ROM/Writer,Bluray ROM/Writer,Etc ?
None.
12. Please tell us about the brands that you prefer to buy from them and the brands that you don't like and explain the reasons.
I don't have a brand preference, but I've heard HP and Lenovo have put unwanted software in their laptops, I'd like to avoid that.
13. What country do you live in?
The United States
14. Please tell us any additional information if needed.
Let me know if you want to know anything else.