Asphalt shingles are terrible quality any more, friend had to replace in 9 years.
Tin is the way to go. The Decora type with asphalt on the tin will last your lifetime, look like regular shingles, great.
Sounds like you want cheap, so regular tin is fine, but looks worse, and if you have a tall house in snow country you'll likely kill someone when the snow & ice falls off.
A third layer of shingle isn't so good on a house, not actually legal in my state, but looks like you want easy as well as cheap, so lots get by doing it.