Re: Nate Robinson or Warrick
Warrick's been very consistent since he's been given big time minutes. Before last night, he had 7 straight games of at least 15/7. He still took 13 shots last night, and was close to a double double, so there's no reason he won't continue to consistently put up 17/8 a game for a while.
As for Nate, he's not as consistent as Warrick, and with the way the Knicks are playing, you never know if Isiah's going to sit his starters for long stretches in blowouts, or if he'll give Mardy some of Nate's minutes like he did at the end of last year.
If you need FG% and consistency, then I guess Warrick's your man; although I'd check out the Knick's/Grizzlies' fantasy play-off schedules to see how many games each will play before making a decision.