All phones have their followers and we all like our particular brands. I am a very big fan of HTC, Sense works great for me and I have become very accustomed to it. I gave my wife my brand new S2X because I simply deplore the way Samsung phones work. To me, very un-intuitive. Never had a Nexus of any kind, will have to one day just to try it. For now, I wouldn't touch a N5 with a 10' pole, but you can't deny it has great specs for the price.
I'm still shocked you can get them online at the store, but the lack of a 64gb device will keep me away. If you can't have a SD slot, then you gotta have 32gb minimum. Storage fills up fast when you use them for alot of things, I use my phone for so many purposes. I just wish they would all have a SD slot, I scratch my head as to why it is often omitted, other than their attempts to control the device for us.