Very good question and also my first question ever if I’m not mistaken :3
1. Capricornus - cuzz I am one so it rules and cuzz it actually has the freaking sun in it at some points and one of the oldest mythical constellations it’s faint but it’s there I think it says a lot.
2. Orion - do I need to say more? XD
3. Boötes - since it’s in the north and I live there so I can see it plus it has the star Arcturus in it which is the brightest shining star in the northern celestial hemisphere.
4. Ursa Major - hellooo the great bear does it get cooler or more mythical!? :P also the big dipper is it in which I have a personal spot for and loads of other great ones.
5. Andromeda - cuzz I like the story, it’s just so beautiful in autumn, way bigger then the moon, the Andromeda galaxy lies in it which is cool but also a bunch of other galaxies, nebulas and messier objects. it’s just cool in so many ways.
6. Centaurus - cuzz it has the tripple star system Alpha Centauri which has the three closest stars which also is the third brightest star in the night sky which means you can see it clearly also the constellation moves around quite a bit which is kinda cool it also as a great amount of stars so yeah pretty great one.
7. Draco - cuzz of the story behind it and that it is circumpolar which means it never setts which is pretty cool also it’s a dragon and who doesn’t like those.
8. Cassiopeia - cuzz she is so vain that it’s basically just WIN written in the sky.
9. Ursa Minor(Little Dipper) - I’m just a sucker for the dipper and Polaris(The North Star) is in it so come on.
10. Canis Major - cuzz the brightest star Sirius(The Dog Star) and one of the largest known stars VY Canis Majoris is in it so it shines pretty bright and looks nice. / 10. Crux - cuzz it’s the smallest constellation but one of the most distinctive, I just love an underdog and cuzz of the southern cross asterism.
then there’s the ‘big dipper’ but it’s an asterism so can’t count that and kasterborous but that’s made up from Doctor Who…well set in a timelock. But I could really go on forever cuzz there’s so many great ones.
But you who asked maybe you wanna be quoted about our favorite constellations? :)