Realistically though, this all depends on why you'd want to do it.
If it's for combat, just use an anthrodrone. It'll have its weaknesses, of course, but a properly piloted hotsim anthrodrone wearing normal armor (which Wakshaani has stated can indeed be worn, it just doesn't stack with the drone's base armor) can be hard to hurt and have a lot of Initiative, while having a very high dice pool for most actions. And, you know, be waaaaay cheaper and potentially even legal.
If it's social infiltration... I'd say it's a tie between an anthrodrone with Realistic Features 4 and a rigged human. Though... The drone failing means people realize its a drone and getting pissed. If people realize it's basically a meat puppet, oh god will they react badly. Expect HTR, and civilians having nightmares. Not that you'd be bothered by that, you monster.