My Boys.

Buddy is the oldest. I didn't want a dog, especially a pitbull, but my youngest sister got him for her daughter and asked to leave him with me while she got some stuff. I basically didn't hear from her for six months and in that time he was already attached to my hip. He's the oldest and the 'leader' of the three, whatever he does they fall in line with.
He can't stand fighting and if me and my wife so much as argue about something he starts crying and bringing us his toys to distract us from what we're doing. Acts like he's too cool for affection and actively avoids being pet, but always goes to sleep in my lap at night.
Bruno was my second youngest sister's dog, also purchased for HER daughter from the same guy as Buddy but a year later. He was a horrible little berserker that picked fights with everyone and everything and I used to hate having to deal with him; but then winter rolled around and with the temperature dropping well below freezing and him still being so little, she asked if I could keep him until it warmed up, since her landlord doesn't allow pets inside.
He became a complete baby once he was an inside dog; 90% of the time he's in physical contact with either me, my wife or one of his brothers. He's scared of the dark, can't stand to be alone and wants nothing more than affection. He also 'smiles' because he knows we find it cute, although if you don't know what he's doing he looks mean as hell.
My sister reclaimed him after winter was over, but he cried outside all night long and was just miserable, so he's back with us.
Bash is a beast, as a puppy he was twice the size of the others and has just grown exponentially since then. He's from the same litter as Bruno and I managed to snag him as a Christmas present for my wife since she's always wanted a blue pit and I had just enough for him in my pocket at the time I heard he was still available.
He's the most laidback of the three and pretty much just waits to see what everyone else does and copies them. His size means that he lumbers everywhere and can't fit into places that the other two can, but bless him he still tries. His tail is ridiculously powerful and often leaves bruises in its excited wake.
My favorite thing about Bash however is that he doesn't destroy his toys. He barely even plays with them. He just picks them up and carries them around with him and snuggles them like he's a toddler. He sleeps with them, he shows them off and he even tries to bring them outside. When we tell him no, he places them next to the door and picks them up on his way back in. If it wasn't for the other two constantly breaking his stuff, I swear he'd still have the same stuffed bear we originally gave him.