Fair points. Another thing I need to realise is use my players to there strengths.
With 433-2, what I've found so far with Aguero is that most of my goals come from lobbed through balls. Easy to score goals but very boring play. If I try to score by build up play then I find Aguero gets to isolated and then it's impossible to send a pass to him. With 433 I do think you need a strong target man up front.
I think I still prefer 2 strikers up front but with 443 I seem to pass the ball a lot better than 41212. It's very difficult for me to decide what I prefer.