What does George say is the difference between him and Lennie is?

George is smaller than Lennie more protective of Lennie and he thinks before he makes an action or speaks

Lennie is tremendous in size he has a mind of a child he doesn't think what he does until he has harmed or killed something then he realizes what he has done bad he enjoys touching soft things and doesn't know when to lets go

some similarities are that they are both good at there jobs and they both have similar dreams (the Ranch)

Hope this helped out (: