my opinions
BB1- not even worth mentioning because its not an eye... don't like the idea of it really
BB2 - its ok because the show was in its early years but is bit bland maybe a bit of colour??
BB3- there's something i like and hate about this eye... i think i hate the colour scheme
BB4- its nice but not spectacular
BB5- good but became a very standard eye (not talking about in comparison to other BB eyes... just in general) the original BB template is different
BB6- love it very unique and the colours go well with it
BB7- i really like this eye .. simple but effective
BB8- i dont know why people dont like this eye i think it is very funky and BBCH eye just made it better the splats work with it so well

overall i think that BB6 BB7 BB8 had the better eyes with BB6 as the best eye ... hopefully BB9 eye will top that
i know the chances are the BB9 eye wont be yellow because of BB7 being yellow but i always have an image that it will be ... i seem to stick yellow with 9.. weird huh?

cool

I don't have an opinion on most of them, but my favourites are the BB5 and BB9 eyes and my least favourites are the BB3 and BB4 eyes for looking like some naff magic eye picture you used to get on the back of a cereal box.

I'm liking the BB11 eye by the way.

I liked BB3's eye!