Favorite Japanese Band?

Mine are UVERworld, FLOW, YUI and Home Made Kozaku ^^Others that are pretty good:-AAA (Triple A or Attack All Around)
-Tomoko Kawase (Tommy Heavenly, etc...)
-Maximum The Hormone

At the moment, probably Boris.

The Back Horn
Asian Kung-Fu Generation
Acidman
The Pillows
Showtaro Morikubo (not a band but an artist)

mine is Undead Corporation

Asian Kung-Fu generation
Beat Crusaders
(and though technically not a band but a person) YUI

Oh yeah, I forgot YUI. She's so awesome!

SPYAIR And flow are pretty good

Luna Sea is pretty good too.

Monoral is great. They used their song "kiri" in the intro of Ergo Proxy. I was surprised when I first heard them. They sing in English, and they sound very western, none of that engrish type stuff from other english singing Japanese Bands.

Just edited my post and added in Home Made Kozaku. They're really good!

The ones i like,(* means my favorites and recommended to listen to :D)
LiSA*
Home Made Kozaku*
Uverworld*
Tommy Heavenly
Aoi Eir*
Supercell*
Iku
Kotoko*
Marble
L'arc-en-ciel*
Hearts Grow
YUI
Rookiez is Punk'd*

Hikaru ;D ;D ;D

SCANDAL, SPYAIR, ONE OK ROCK, THE GAZETTE AND LISA ARE AWESOME :D