i decided to swatch a few teals today. i pulled what i felt were the most similar and asked about.
illamasqua muse is so gorgeous and compared to the 3 coats i needed for moody...it was a dream to apply.
rescue beauty lounge teal and nails inc rodeo dr. are similar with RD being a the bluer of the 2.

could i live with only 1 of them?
...yes. the nails inc was flawless in 1 coat and i get excellent wear so that would be my choice.
here they are with 2 coats. muse is 2 coats. moody is 3...old formula SW can be a pain and i don't have the best luck with wear either...however, look at that tiny teal sparkle. it's so dusty and gorgeous.
here are the teal/blue nfu-ohs i own.
my camera does not play nice with the sea green family so 240 looks blue..ignore it. i would have cropped it out but at least the tone is right so you can see it's a much lighter/brighter color then the others.

273 is much greener then 559...there was talk they were twins...but it appears they are just close cousins. this picture is a bit washed out but it helps see how different the tones are.


272 vs teal

all different...all kind of the same... depending on who you ask ;)

hope that helps a little.