I say Lexeaus sure Siax has power and speed while Lexeaus is slower but more powerful. Normal i would say speed overcomes power but in this case it doesent. Siax uses to much speed which makes his power decrease giveing Lexeaus the upper hand and behing able to take him down in no time flat.
Well it depends what Sephiroth we talkin about? The one from KH? Shoot that one would lose against Roxas by himself. The one from FF7? Maybe he would be able to beat them One at a time but not all together. Pretty much Sephiroth is no match for Org. XIII.
I already have most of the org members names out :D
Xemnas~Ansem
Xigbar~(hard to make out)
Xaldin~Linda (i know girls name but only real name there)
Vexen~Neve
Lexaeus~(Hard to make out)
Zexion~Zieon
Siax~Sai
Axel~Lae
Demyx~(also hard)
Luxord~(Also hard to make out)
Marluxia~(Really hard
Larxene~Elenar (heh heh Elena from FF7 with a R at the end :D)
Roxas~Sora
Hey whats up fellow Kingdom Hearts fan. As u can prolly guess im new here (well sorta :P) But yeah thought i would drop in and say hello. And now im sayin good bye smell ya later.