number 1 :
looks good, i cant rely see wat kinda hood its got on it but all in all it would be great
number 2 :
has a hood that will work, looks to have enoght room, but is very tall and the betta would have to travel a lil bit more to get air.
number 3 :
has no cover, automatically out.
number 4 :
has a hood, plenty of room, and if its the tank i think it is, its more than a betta would ever need.
( im assumeing all of the above tanks are atleast 1g or more )