I personally like Taiki the best, but yeah, Seiya 
is especially popular. ..In fact, I started my cel 
collection with a Taiki cel, now that I think 
about it.  Another thing to remember is how 
old Sailormoon is getting in general.

I have a dream cel from Stars, but I'm never 
going to get it because I heard in an interview 
that one of the seiyuu of the Starlights already 
claimed it, and it was a static, one cel pan 
shot... when Minako has her fantasy of the 
Three Lights in tuxedos presenting her with 
gifts.

Chiming in late on this subject... *hand behind 
head*