Wow!! My first run in with Canikon snob...

Most of my bodies are Nikon which I shoot with Sigma lenses (e.g. 8-16, 120-300, and 300-800).  Nikon and Canon simply don't have any lenses like these.  However, I do shoot football and BIF with an A57 with Sony 80-400 because the combo is fast and sharp.  The silver colored 80-400 actually causes a lot of curious Canikon users to ask me what it is.  Then they hear the 10 FPS with continuous autofocus.  Nice.