Arnold or Willis?

I like them both, but I'd have to say Arnold out of the two.

I liked the young Arnold the best. Although as he got older he started to get very bossy and at times annoying. So in the last few seasons I liked Willis better.

Arnold besides Willis, Arnold had a wide range of humor, that's one of the reason he would be one of my choices.

I like Willis better out of the 2.

I really like both of them- but I agree with mdntrider7 in that Arnold was quite an unkind character at times in the later ones.

I liked Arnold the best, Willis was just too moody in the early seasons.

I like Arnold the best.