There's a whole bunch of bikeshedding that goes on with programming fonts, (Consolas, Fira, whatever) and all I can say is that I've used the default for so long that anything else looks weird. Neutra is pretty sexy. Other go to's are Roboto, Univers, Ostrich, Franklin Gothic, Din, and Avenir.
For serif fonts, I like Georgia and Palatino. Also, I enjoy slab serifs like Museo or Rockwell.
I'm already sick of Helvetica and Gotham. Not that I don't use them, but I'll try something else first just to keep it interesting and to experiment.
I don't really have a favourite font, but when designing websites, I try to avoid third party fonts as this can have quite the negative impact on performance, unless it's in some sort of image like a logo.