We all know how difficult it is to identify the sex of these fish, so please post a picture in here and we'll try to help you (or at least give an educated guess!).
I would say
2 - male
1, 4, 5 are females
3 leaning towards a male because it looks like his fins are red from fighting for position, but his/her body looks like a female w/ eggs! A better pic will determine that.
PS it would be good if somehow we find out later down the line the real sex, that we remeber to post to see if were right or wrong....