Question is, who the hell wants to look like a barbie? Looking like a human would be nicer.  

About over all feminising plastic surgery, I say better go for lipo sculpting / contouring and fat grafts than fucktons of botox. When only thing injected and shaped is your own fat deposits, I'd think its far better than getting stuffed with foreign material that shouldn't really be inside our bodies. Then again, botox is fantastic for doing minor fixes when its done really well.

For anything bigger than shaping tiny stuff on face, I'd really rather consider lipo + fat transfers. Ofc I'll advocate for the thing I've done and going to get more of so I guess I'm biased.