As they say, two heads are better than one, I believe so much in team work and in my own opinion, I strongly believe that team token is better than the sovereign one reason being that, as s single person, it will be easier to manipulate the system without anyone counter checking any of the actions first.
But when it comes to team, you also need approval or consent of the majority without before carrying out an action, as a sovereign ico, imagine that I suddenly wake up and decided to personally pump the market, to me, it might makes sense without thinking of the negative effect of it why as a team, different suggestion will come as to whether the action is right or not.
It all depends on the idea behind the token, I won't be comfortable to invest in a token created by a team that can't tell us a good idea to which the token is being created.
I believe the idea or concept or invention or solution must be always important regardless of basics of its dev team or backing reserve concerns. I mean without proper idea, I believe no one will touch a new coin/token. That must be a basic criteria for me to start my due diligence for deciding about them.