In the rather large company I work for, a lot of developers are switching from Dells to Macs. My Dell is an i7 with 8 gig ram and 256 ssd. Those switching to macs are getting 16 gig of ram instead (dell says that 8 maxes out my box, but I think it would probably work with 16). We run virtual boxes on both platforms, but they are now giving us the choice. The only macs around just a few years ago were for testing our products on safari.
I have a Mac and a Windows box at my desk, I usually use RDC on the Mac to access the Windows box.