M-O! He’s just way too adorable.
WALL-E and M-O are the most adorable characters in this film.
“-WALL-E.
-M-O.
-M-Ooo?
-M-O.
-M-Ooo…”
But my favorite is WALL-E, not only for his cuteness, but also for his “human” hobbies and behaviour. It’s ironic that WALL-E is more humane than actual mankind.
My heart still belongs to Wall-E. He’s just the pure example of love and cuteness! If we could live immortally, i bet we could all become Wall-E’s pure example if we have 700 years of sentiment to truly understand it!
I actually like walle and eve. But I’m more partial to eve because I like the futuristic design (it’s been one of those things I’ve been trying to incorporate into my 3D works).
M-O was certainly my favorite on early viewings of the movie, every time he made an appearance I got excited because he was so entertaining. 
WALL-E is so interesting, though…
M-O is my favourite character because he helps WALL-E at the end and keeps everything clean which is very important for me. I can relate to him because I have to have everything clean. He is also a very interesting character. WALL-E is a very close second for me. He really is an amazing character. Very Loyal. I love it how WALL-E says “EVA”.
Haha yeah Mo is crazy awesome.
I guess EVE. But I like all of them! Especially EVE and Wall-E.
I guess Wall-e, but Hal comes close.
WALL-E is awesome.
And I love Animals and Insects so Hal is also one of my favorites.
Isn’t he the only one we see?
I think so.
I still wonder where all of them were.
I love the Cockroach. 
I love M-O but WALL-E is definitely my favourite! He’s adorable <3
Great choice^^!
It is really hard to decide between WALL-E and EVE. I love both of them!
I feel the same way. Both of them together is perfect after all! But I love WALL-E’s curiosity and EVE’s bravery.
I love them all!
Yeah i dont know if I have a favorite character for this movie either. I certainly like most of the characters, but I cant say there was really one in particular that stuck out to me.