I prefer longer lines than 80; I think 120 is a nice number. I find 80 really cramped. But I don't want to be a jerk about it.

Do you work in the terminal, @ormsbee ? I do - I'm a vim user - and what I typically do is just fullscreen my terminal and then use tmux to slice it up into views. on my laptop, a fullscreen terminal at my default font is 194 columns wide - not quite wide enough for two 120 column windows side-by-side, but I tend to just ctrl-/ctrl+ when I need to see less/more. 

I'm not necessarily trying to convince you to work my way, but more curious how you work.