They have several locations but the original one is in Studio City.

My fav place is in Lomita, Sushi Delight.  Got to get the "Mushroom Bomb" appetizer!!!

I recommend Minori sushi at the corner of robertson and pico  and

Kula sushi - they have a few locations. The one in Torrance is the best. Try the yakiniku sushi - out of this world

And then Matsuhisa on La Cienaga if you want the  SSE (sushi star experience). Be prepared to pay a price though

Donovan

En Sushi on Santa Monica in West LA and Sushi Sasabune but can get pricey at this place.

But, honestly I'm hapa half japanese from Hawaii. Everyone has different taste buds and different opinions. It's up to your own taste buds on what you might like and the next person might not

This place is so amazing it has ruined me for all other sushi spots.   Run don't walk!!! Ooh I'm craving it right now!!

Matsuda in Studio City, but there are so many good ones in Studio City on Ventura Blvd. eom

Been around awhile and still one of the best. Pricey though, but you get to "star watch" - saw Denzel Washington last time I went.

If you have crazy money - Urasawa in BH $300+/person.  
Or sushi zo  on national blvd. - still a bit pricey.  
Sugarfish is pretty good too - multiple locations.  

Good luck!

Sushi Gen in Little Tokyo

Sushi Zo in Culver City

Hiko Sushi in Culver City/Palms area

Hide sushi on sawtelle in west la is good.