OP
bikramjitkar
In the zone
Go for MSI GS 30 Shadow. 13 incher with core i7 4870HQ. It's more powerful than any processor found in Sager(except desktop and extreme one). Also it does not have a dGPU. It's one of the lightest and thinnest laptop.
It also comes with a dock to house a desktop GPU(upto GTX TITAN Z SLI card---->compatible as told to me by Xotic guys) should you ever feel the need to play games.
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MSI GS 60 Ghost is pretty good too.
Alright man, thanks a lot for your input. I have a bit of time on my hands to make a choice, let's see what my manager has to say to this!