I'll take a vaper next to me over a smoker any day of the week.
Vaping should be regulated similar to cigarettes though, age restrictions, can't market to kids, where you can and can't vape. Though likely not as strict with the last.
Cig smoking should only be allowed in enclosed glass boxes with proper ventilation, like they have in some airports, where normal people can watch the smokers like one would watch monkeys at a zoo, while the children point and laugh while making funny faces.