Being a reasonably long-time Doom Patrol fan, I often find myself reflecting back on the original team, in comparison with their current, modern versions.
Robotman: Back in the original run, I found Cliff to be almost interchangeable with the Thing (from FF), in terms of his personality, speech patterns, and general behaviour. I don't see him as a rip-off of the character - moreso just a character created in a similar vein, with a headstrong personality and a big metal heart.
Nowadays, whilst his speech pattern is more similar to the Thing's, he's branched out as more of a 'human' character. He makes mistakes, he says/does the wrong thing (as does any character infused with human traits) but behind it all, he really is an everyman, and always willing to stand by his friends. I've never been a fan of the 'tough guy' stereotype in comic teams, but Cliff is different. He's been through a lot, and is still willing to save the day.
Negative Man: I was never particularly drawn to Larry in the original run. He was different, a bit odd, quite aloof, but still inherently likeable. I was impressed by his later incarnation of Rebis, although one could argue that they didn't share any common traits aside from the bandages.
The modern Larry is one of my favourite characters ever. By turning up the personality of the original version, and maintaining his affection for the other members, Larry has become the team clown, who just can't stop joking. I see elements of the Human Torch in the original version, and possibly Spider-Man in this incarnation, which is befitting of a guy who is made up of several bodies and personalities (over time).
Elasti-Woman: In previous appearances, Rita was usually the damsel in distress, and there wasn't much to differentiate her from other females at the time. She was a likeable character, though I never really understood her attraction for the arrogance of Mento.
Modern Rita is a flawed, human, emotional character who has five times more depth than most of the female characters in comics. She has been through a lot, and is not afraid to reflect that in her personality. Whilst she is finally learning to hold onto the family that she has, Rita still has a way to go in being happy with the 'person' that she is. Her spotlight issue is always a pleasure to re-read.
How does everyone else compare the original versions with the modern incarnations?