Thats a hard question!
I'm not sure what way we should feel about Reese because in the earlier seasons he was a real bully and was always picking on everyone. But in episodes like 'Cheerleader' you can see the nice pitiful side of him.
In the newer seasons they really make us feel sorry for him like in, 'Malcolm films Reese' and 'Malcolm defends Reese'. And even in some earlier episodes like, 'Minibike', I think thats the name, and Malcolm says to Reese, 'You don't have any friends'. And Reese just says,'Mom told you your never allowed to talk about that'. I don't know about anyone else but that makes me feel sorry for him!
I think they want us to like Reese as a charactor even though hes a bully so they make us feel sorry for him.