laptop advice please

[Bolerus]

I am looking to replace my old and trusted dell vostro 1700 ( 2.2 dual core with nvidia 8600)

but I am looking at 2 or 3 in my price range ( 700 - 800 ish)
but cant decide over better cpu and lesser gpu or vica versa

the specs i am looking at are

Dell inspiron (£709)
CPU = 3rd Generation Intel® Core™ i5-3210M processor (3M Cache, up to 3.10 GHz)
GPU = 2GB Nvidia GeForce GT 650M 90W


or
Lenovo G780 (£749)
cPU = Intel® Core™ i7-3612QM Processor (6M Cache, up to 3.10 GHz) rPGA
GPU = NVIDIA® GeForce® GT630 2GB

or maybe
Lenovo IdeaPad G770
CPU = Intel® Core™ i7-2620M Dual Core (2.7GHz, 4 MB L3 cache, Features Intel Turbo Boost up to 3.4GHz)



or amd route with a toshiba SATELLITE PRO L870-149 (840 ish with vat)

3rd generation Intel® Core™ i5-3210M Processor with Intel® Turbo Boost Technology 2.0
AMD Radeon™ HD 7670M Graphics (2GB dedicated memory)


What do the laptop experts think ?

 

[Bolerus]

wow nobody have an opinion, that has made me feel a bit better, seems im not the only one unable to choose