Is there any rationale to using one superlative over the other? Consider this list of the three of them:
large_eyes
large_cross
large_nipples
large_areola
large_bow
large_buttons
large_insertion
large_breasts
huge_filesize
huge_clitoris
huge_testicles
huge_weapon
huge_sword
huge_dildo
huge_ass
huge_nipples
huge_breasts
huge_penis
giant_leaf
giant_cat
giant_toad
giant_ant
giant_slug
giant_book
giant_poster
giant_brush
giant_monster
There's also gigantic_penis and gigantic_breasts, though I personally wish there weren't, generally.
Now, large_breasts and huge_breasts we've more or less covered at this point, but many of these seem really arbitrary. We have large_bow, but huge_sword and giant_brush? That makes searching for them hard, and remembering how to tag them even harder. Could we possibly come to a consensus (hey, stop your laughing!) for these?
As a side note, I've taken the liberty of cleaning a few typos out of this list.
Updated by KeliraTelian