Poacher is finishing, pace, dribbling and off the ball. Target Man is heading, jumping, strength, finishing, off the ball etc. I feel the main difference between the two is pace. The poacher usually sits in line with the last defender, ready to run onto a through ball, whilst a target man waits for a cross within the box either to his head or foot and finishes off the move. not sure what complete forward is tbh. Check the in-game description of that.