To be a pedant here: there's a bit of a difference in both of these threads between the question 'which teammate did Gerrard LIKE/DISLIKE the most' and which one was the 'best/worst' FOR him and his game. When it comes to bad players, for example, most of those listed didn't really intrude that much on his own game. Similarly, while Gerrard naturally raved about the goal scorers, I think the choice is more focused on other midfielders if you're looking at who was best for him.
Agree with the overall thrust of this (oo-er matron) but for me Carra would be well up there in the "best for him" category, doing much of the donkey work of captaincy while Stevie was off dropping grenades in the opponents' half.