Was/Is Marvin better than Al Harrington?
Well Al Harrington can't even start on a weak Knicks team and plays little to no defense and is older, I'd rather have Marvin
Was/IS Marvin better than Chillz?
Yes he was better back then and he's better now, no one sees childress as a starter and thats why no one wanted to give him remotely anything of value and thats why he is where he is now, he's a solid guy off the bench, not a starter.
Was/IS Marvin better than Flip Murray?
Considering Flip murray gets bounced around from team to team due to the fact that he isn't that special Marvin was and is better than Flip
Finally... Is Marvin better than Crawford?
No Marvin is not a better player than Crawford, but Crawford is a selfish player at times and can be a cancer at times, but yes Crawford is better