The newer Systems (ICON and Coda) have both their advantages (though I prefer ICON) and the ICON books provide a lot more background information and a more storytelling approach (although this IMHO only because Coda made a more general approach to the subject).
So i only can second what The Tatterdemalion King said.
It's your game and your personal preferances should guide you.
As all styles of play are positively possible with all three systems.
"Space may be the Final Frontier, but it's made in a Hollywood basement"
Red Hot Chili Peppers "Californication"
"per aspera ad astra"
Seneca