means more dodges = more channels
while we can debate all day the virtue of whatever stat. I still have yet to see a pre 56 mob (while I'm 60) be affected by CHA. I also have yet to see difinitive proof that AGI didnt help dodge.
anyway, if I had just these and insid to wear, I would choose these by far due to the phat +hp. but there are again several better (albeit rarer) options.
as for the person who posted 'why is this worse than kael'. think of enchanter as a tank, the ability of a enchanter to live till the next heal or regain concentration is the sole purpouse of everything we do at 60, so +hp and +agi is quite nice even tho I didnt think it was that important myself until I stoped xping hehe )