Maybe my inner psychopath is rearing its ugly head, but I'm a die-hard Saix fan. Why? Well... cute little elf ears... want to nibble.... Anyway! :o
Seriously, somthing about Xigbar just made me want to punch him in the nose. Hard. And laugh as he bled. I know he's the 'awesome surfer-pirate-ninja' and all, but his voice made me want to kill him (and kill him I did).
Plus, Xigbar was *too* laid back. He was just bouncing around being a goof while Saix was helping Xemnas. I respect someone who works hard, especially someone who works hard for what they believe in.
Saix was acting as second-in-command while Xigbar was out being his 'awesome surfer-pirate-ninja' self. So even though Xigbar *might* (I said *might*) be able to win the battle, Xemnas obviously doesn't trust him to take his duties seriously.
On a side note, Saix was #7 but was acting as #2. Vexen was so serious about not getting his respect because he was the highest ranked in Castle Oblivion... I bet watching Saix drove him crazy!