I'm on the fence about which new 2016 MacBook to pick up. I could go either 13 inch or 15 inch but I'm not sure where the bottleneck in hardware will be. I know for sure I'm getting 16 gigs of ram. My question is if it's even worth it to get a quad-core or is it fine to just get the dual-core i7 or even i5? Basically I will be running Xcode (swift) which is a processor hog for compiling and an Ubuntu Vagrant box + docker. I'm guessing the ram will be my issue before the processor difference is even noticeable but I haven't been looking at hardware in awhile.