Help me to choose between these gaming laptops

I'm really confused to choose between these gaming laptop($1350 is maximum)
I am Student,i don't really always bring my laptop to school everyday or even everyweek,and once or twice a month I always travel to my homecity

Sager NP6110(starting at $880)
Strong point
-3.97 lbs include battery pack(which is really nice for a student like me)
-GT 650M 2gb gddr3 but it's clocked faster than the usual version(Is it Enough to play modern games these days? I play farcry 3 , Battlefield 3 , Skyrim. I want to have 35+fps with a high settings or even Ultra!)
-Intel i5 3210(additional $30, wii it bottleneck gt650m?) or intel i7 3610(additional $150, is it worthed?)
-11.6" HD LED-Backlit Display with Super Glossy Surface (1366 x 768) (what is the visual feeling difference between 1366x768 and 1920x1080?,will the 11.6" 1366x768 be the same with 15" 1920x1080 ??)
-4gb ddr3 1333mhz or 4gb ddr3 1600mhz add $10 or 6 gb ddr3 1333mhz add $30???
-if I want to feel full HD I can connect it to my LCD TV(will the graphics beat the console graphics??)

MSI GX60($1295)
Strong point
-7 lbs(...)
-AMD 7970M 2GB GDDR5(MONSTER!!)
-AMD A10 4600M( I knew about the bottleneck issue,but I surfed the internet long enough to know that,The Issue can be solved by changing graphic settings from supersampling to multi adaptive,it's really fix a lot.source Overclockers UK
-15.6" Full HD (1920x1080) LED backlight, Anti-glare(still the same question)
-8 GB DDR3 1600mhz(MONSTER AGAIN!!!)

Sager NP6370(starting at $910)
-6 lbs(....)
-Intel i5 3210(add.$100, will it bottleneck?) intel i5 3320(add $130,botteneck?)or intel i7 3610(add $200,worthed?)
-GTX 660M(will it play Games HIGH setting?? (35+fps))
-17.3" FHD 16:9 "Glare Type" Super Clear Ultra Bright FULL HD((1920x1080) LED Screen( is it too big for the GPU?)
-4GB DDR3 1333 MHz or 4GB ddr3 1600 MHz (add.$10) or 6gb ddr3(add.$25)

MSI GE60 OND(starting at $1120)
-4.9 lbs(...)
-Intel i5 3210 ( no add,bottleneck???) or intel i7 3610(add $280,worthed??)
-GTX 660M(Still the same question)
-15.6" Full HD Anti-Glare (1920x1080)(too big for the GPUU??)
-8GB ddr3 1600mhz(MONSTER!!)

Sager NP9150(starting at $1280)
-6.8 lbs(...)
- intel i5 3210 (add $50,bottleneck???)
-GTX 670M(will it play game HIGH settings??(35+fps)
- 15.6” FHD 16:9 LED Backlit Wide screen (1920x1080) Super Clear Glare Type Screen( is it too big for the gpu???)
-4 gb ddr3 1333mhz

Questions
1.which Laptop is the strongest one???(combination of GPU,CPU,RAM)
2.which is the best laptop with price/performance???
3.Please answer about the 11.6" 1366x768 vs 15"1920x1080 vs 17" 1920x1080, visual difference???
4.i definetly had a doubt with the gtx660m
5.any suggestion for what to buy??? opinion??? or recommend another laptop beside all of the above????

This laptop i'll use is 80% for gaming.
Thanks for all reply