I am planning my next build and I wanted to do things a little different this time. I've made a few mistakes with the planning of my last 2 builds. I found ways to make them work with the help of the community here... but I think it will be much easier to get advice before I spend my money.

5k budget
Mining performance is obviously important to me but I prefer reliability and longevity over anything else.
Located in the United States: 0.12 eclectricty costs

I have the most trouble selecting a good GPU. Which is your favorite?