The weakest Kage

[grizzlyshree]

Probably Kakashi, he could be beaten by almost everyone who's a kage, don't give me the "1000 jutsu" bull crap, that's hype until we see all those jutsu.

we wont see all those jutsus and hype is true!. since manga itself says of it

 

[Guildmage]

Probably Kakashi, he could be beaten by almost everyone who's a kage, don't give me the "1000 jutsu" bull crap, that's hype until we see all those jutsu.

Only if kakashi has enough chakra to do them. At most he would be using 20 different jutsus. He just has a good variety of jutsus.

Anyway to answer the question, I would say most likely the 3-4th kazekage, and kage-kakashi can never be counted with mangekyo, because when he became homage, it was without the MS. So Kage-Kakashi is simply Kakashi non-MS.

I would even put kakashi as weakest.