I dunno, I can't say I disliked any of the Turaga masks, though the Komau's my favorite. :P
I have to say, I rather liked Nuju's "all-seeing yet quirky seer" personality - it made him feel sorta like a really uptight Yoda who can see all that once was and all that will be. Plus... what DID we really see of Turaga Onewa's personality? I mean, they described him as being "fair", but that never really comes into play in-narrative.