Since the poll was for the "best e-cig for new users" I voted 510.
That is what I started with and still use. It is simple, reliable, long-lasting, small, and cheap.
Yes, I have used other PV's - Blu, DSE901, DSE905, Mr.Puffer, 5v mod, VapeStack, 802's, V4L, eGo.
I love my eGo's and vape...