I'm sure you know the differences between the hyperion chargers, but go to this site:
http://www.rcgroups.com/forums/showthread.php?t=773058
and download the excel spreadsheet and it tells you all the differences.
I own a 1210i for my big pack (2000mah+) and for my A123 cells
I also have a hobbico accucycle elite for my smaller packs and misc NIMH stuff.