[RA1N]

I am currently looking into getting a high performance laptop and I understand that laptop's aren't the most efficient way of optimally having powerful components (Compared to desktops) but, due to my current standing point in life the best thing I can use is a laptop for on-the-go development and for other conveniences of them.

My Budget:
Virtually anywhere up to $2500

Any suggestions?
Would love to hear some more input and try and give some backing to your suggestions as why you would choose what you would if you had $2500 for a laptop.

Update 2/11/16:
My current options:

MSI GT72 Dominator Pro G:

CPU:Intel Core i7-6820HK 2.7 GHz w/Turbro 3.6ghz
Screen:17.3" IPS
Memory:32 GB DDR4
Storage:1 TB HDD + 256 GB SSD
Optical Drive:BD Burner 9.5mm
Graphics Card:NVIDIA Geforce GTX980M
Video Memory:8 GB GDDR5
Communication:Gigabit LAN and WLAN
Dimensions (W x D x H):16.85" x 11.57" x 1.89"

Razer Blade Pro:

Display:17.3” Full HD 16:9 Ratio,1920x1080 LED Backlit
Graphics:NVIDIA® GeForce® GTX 960M (4GB GDDR5 VRAM)
Processor:Intel® Core™ i7–4720HQ Quad-core processor with Hyper Threading 2.6GHz / 3.6GHz (Base / Turbo)
Chipset:Mobile Intel® PCHM 8 series chipset, HM87
Memory:16GB (2 x 8GB DDR3L-1600MHz)
Storage: 128GB SSD (mSATA)+500GB HDD 256GB SSD (mSATA)+500GB HDD 512GB SSD (mSATA)+1TB HDD
Communication:Intel® Wireless-AC 7260HMW (802.11a/b/g/n/ac + Bluetooth® 4.0)

Alienware 17 R3:

Intel® Core™ i7-6820HK (Quad-Core, 8MB Cache, Dynamically Overclocked up to 4.1GHz)
17.3 inch FHD (1920 x 1080) IPS-Panel Anti-Glare 300-nits Display
NVIDIA® GeForce® GTX 980M with 8GB GDDR5
8GB Dual Channel DDR4 at 2133MHz (4GBx2)
128GB M.2 SATA 6Gb/s SSD (Boot) + 1TB 7200RPM SATA 6Gb/s (Storage)
Killer 1535 802.11ac 2x2 WiFi and Bluetooth 4.1
8-cell Lithium Ion (92 Wh) Battery