IMO they are both great players to collect. Both haven't reached their potential and one of those guys is playing on a championship calibre team that might go all the way this year (Maxiell). I've seen his cards go for ridiculous prices the past year as well as Amir Johnson. The fact that Detroit is so successful with these guys coming off the bench pushes their card prices up.
As for David Lee, if he does somehow get traded to a better team where he can start, his cards will skyrocket. If he stays with NY and they make some big moves in the offseason and Lee starts next year, again, his card prices should jump even more.
Both are great up-and-coming young players who can rebound, score and block. Great blue collar type guys any team would love to have!
But i'm a bit biased. :v: