This is a Naruto related question so you should have put that up there, because not everyone here is a Naruto Fan.
Sharingan can see the next movements or attacks before the Enemy or person makes them. Byakugan lets them see behind them, or in any direction I think in like a 500 meter radius (I forgot what neji said).
Both eyes are good but the Byakugan by default sees more.
I don't know about either of those things. Please tell.
Sharingan: Uchiha clan bloodline. Can see the enemies movement before they are made. Can copy any jutsu after it is seen once, but can not copy other bloodlines.
Can be upgraded to the mangekyou sharingan, wich is even more powerfull and allows some of the greatest genjutsus to be used when activated.
Byakugan: Hyuga clan bloodline. These eyes allow the user to look far into the distance, look nearly 360 degries around him, look straight through things, detect chakra, and see a persons chakra system. Because the users of the byakugan can see the enemy's chakra system, they can use various techniques and jutsus that allow them to controll the enemy's chakra flow, paralize them, or totaly block their chakra flow. The hyuga clan also uses the byakugan to spot the enemy's organs, and blows chakra in them instead of simply hitting their enemies. By this they can destroy their enemy from the inside.
I don't think I'm dealing with quite the same pressures though, at the very least its a significantly smaller system. For the time being I'm just going to put together a quick scrubby box though and hope it works good enough to not make my house toxic
I do know this - xenforo dropped the ball by not keeping the vbulletin reputation comments as a feature. The loss of the Reputation comments data when we switched to Xenforo really was the death knell for the site when it came to all the users that left. I know I missed it so much and I got way less interested in the site when that feature was gone and I run the site.