Recently bought a Dell e7440 14" machine with i7, 16GB and then added a 1TB SSD. As developer machines go, it's pretty decent. Not as much battery life as I'd like (3-4 hours) but I haven't actually run it out yet. It's small and light enough that I can take it anywhere, but big enough that I don't need external monitors to get proper work done. Only real downside is that the video is a little underpowered (HD 4000) so no gaming.
I recently ordered a HP Omen gaming laptop. 16GB RAM, 512GB SSD, Nvidia 860m with 4GB VRAM, 15.6in 1080p IPS screen. It was $1700 USD from Costco, but it has taken three weeks to arrive. It is a little heavier than the e7440, but I really wanted a 15in screen.