Depends on what you plan on doing with them. If you plan on skiing mostly park (basically 100%) center will be fine. If you plan on doing some all-mountain (say 50%-75% park to 50%-25% all-mountain) -1 seems to be a pretty nice place (that's where Karl puts his). If you don't plan on touching a single rail with them, go recommended. A lot of it has to do with personal preference too, for example I'm really used to center mounted skis, so even though I'm going to ski only park with mine (although, they will be used as park skis most of the time) I'd go at center just cause that's where I'm comfortable skiing.
"Joss Christensen stash's his gold medal in a 4bi9 beanie. That's what I think about the Olympics." - Crazy Karl