I'm an AA EXP that got dragged kicking and screaming over to United. I'm curious how people value a United mile compared to other points. I've applied for and received the United MP Select Visa. It's a no-brainer that I'd charge my airline tickets there and get 3:1. I'm pretty sure I should charge some things like gas to get the 2:1. But, I guess it depends on how I value that UA mile versus an AA mile or an SPG point.