I use center-weighted average mostly. In landscape it doesn't matter, so I usually use evaluative or center-weighted average. In sports however, I find spot metering with the 1D Mark IV very useful! Imagine a track meet or football game with sun overhead, and the player's jersey is shadowed. Select spot metering, meter on the jersey, use Av mode with ISO safety shift and auto ISO and you've got it. Make sure you're shooting in RAW though because the exposure won't be exactly perfect, but it'll work. Another instance is bird photography whereby you want a bird shot of a flying bird with a bright sky behind it. Spot meter on the bird itself with a bit of EC and again, you've got it. Portrait photography for sure as I find that preserves skin tones, but you again may have to play with EC to get it just right. Hope this helped.