I'm a bit of a newcomer to the whole Oil scene, having always used Acrylics before. Can't see myself going back now. I find oils are just so nice to use; the way you can push them around on the canvas and make big sweeping marks. Plus no more paints drying out on the palette! ( not for a few hours anyway ).
Here are some efforts i did at an evening Portrait class at Edinburgh College of Art.
All 24x18", Oil (Alkyds) on Canvas