what is the difference between the staff of reanimation and the staff of the zombies ?
except for the price ?

Perhaps the strength of the spell? That is to say, perhaps one staff is capable of resurrecting higher level NPCs than the other?

same words on both , weak buddy for 60 sec , ill keep the more expensive one

http://www.uesp.net/wiki/Skyrim:Staves#Reanimate

Doesn't look like the more valuable one will get you a higher level zombie. And it looks like the cheaper one actually gets you more uses before it needs to be recharged? Can that be right?

Well, you just linked it. The Staff of Zombies will reanimate bodies up to level 3, the Staff of Reanimation - up to level 6.

Ah, I didn't know that's what the 3 and 6 referred to; thanks for the clarification. I haven't played any magic based characters so I've never paid much attention to what those listed stats mean. Usually by the time I find either one of those staves, they don't really do my character much good so they end up on display or just get sold.

well i lost it anyway Aranea Ienith keeps dropping them . i herd that folowers npc cant be killed by other npcs but that is wrong
she dose not survive the the giant hit that makes her fly