Okay, enough is officially enough. I have now seen at least five different members make the joke about how "the last stiff of a big man we picked up from Golden State worked out okay, didn't he?"
Robert Parish was not a stiff. Not in Golden State. Not ever. To put him in the same breath as O'Bryant is an insult to Parish's legacy.
Let's look at the numbers of these two lottery picks in their time in Golden State:
Parish (four seasons):
1977: 9.1 ppg / 7.1 rpg / 50.3% / 1.2 bpg in 18.0mpg
1978: 12.5 ppg / 8.3 rpg / 47.2% / 1.5 bpg in 24.0 mpg
1979: 17.2 ppg / 12.1 rpg / 49.9% / 2.9 bpg in 31.7 mpg
1980: 17.0 ppg / 10.9 rpg / 50.7 % / 1.6 bpg in 29.4 mpg
O'Bryant (two seasons):
2006: 1.9 ppg / 1.3 rpg / 31.3% / 0.5 bpg in 7.4 mpg
2007: 1.5 ppg / 1.2 rpg / 55.2% / 0.4 bpg in 4.1 mpg
Parish was in the top-ten in the NBA in his last two seasons in Golden State, and was #4 in blocks in 1979. He led the NBA in "defensive rebound percentage" in 1979, and was second in 1980 (that's the percentage of available rebounds you get to when you're on the floor). According to basketball-reference.com, he also had the top "defensive rating" in the entire NBA in 1980.
O'Bryant averaged almost as many personal fouls per game (1.6, 1.1) as he did points. Since 1995, only one non-injured top-ten player has played fewer minutes in his two seasons, Saer Sene (hat tip to HF & P). He also has the distinction of being the first lottery pick to play in the D-League, and his coach and general manager have both questioned his desire and work ethic.
I'm not sure where this "comparison" comes from, but it's ridiculous. Give O'Bryant whatever label you want, but he and Parish weren't remotely, in any manner, similar. Golden State just made a terrible, terrible trade, trading Parish and the #3 for the #1. Parish wasn't the same player in Golden State that he was in Boston, but he was a borderline all-star and a top defensive center. O'Bryant chews gum on the bench. Let's not lose our minds here, please.