@Lady i voted that 4 is bigger and i'll add that 5 is bigger than 4, but 6 is about the same as 5. (yes this is based on how high rabbits can count in roleplaying game bunnies & burrows.)
@Lady that's reasonable. my actual serious opinion is ambiguous on 3 to 4. 3 is bigger than 2 and 5 is, contrary to my joke opinion, about the same as 4, but yeah, 4 vs. 3 could go either way.