Huh? How can Robin not be picked? He would be a great father! But I think Wally because he would make his child laugh, not to mention being a fast runner and earning gold at races, he'll love his child no matter what!

how is superboy choosen before robin?

Guys please forgive me, i couldn't chose between robin, kid flash and aqua lad. I dont see it in superboy though.
KF= Funny, like ecoelo said he could make his child laugh xD
Robin= creates a beautiful child with techniques from the best!
but i had to just pick kaldur on this one, he has that fatherly feeling if u know what i mean :)
(Hard choice!)

SB= Strength. So if the kid gets bullied the kid can stick up for it's self. Or something else. I can only think about the negatives on SB.

He would make his kids laugh SO HARD! So him or Dick. Oh Dick~<3~!

I feel like they all would be good fathers.
Superboy never had a father and hated how Superman never acted like one towards him, ergo, Superboy would know how to be a good father by not emulating Superman's distant actions directed towards him.
Wally would be funny and loving towards his child.......but I can't say that he would be mature enough for the responsibility. Maybe.
Dick would be a very serious father.......he'd definitely pull a Batman on his own kid. You can see it!
And Kaldur would definitely be a good father. He, just like Superboy, had a distant father. Kaldur respects his father, but never had that love. I think by not receiving that love, he will be able to create that love and establish that rock for his child. As a leader, Kaldur also knows how to take charge and responsibility for his child.

Robin!

Kaldur is very responsible

I would love Wally as my Dad, the fun would never end and Artemis would be a great Mum and steal with all of the responsibility stuff