man Sasori would definitely be my top pick. Walking around with a heart in a can that has the ability to take control of objects and use them like puppets, Hellz Yea. I'm massively lazy so i'd be like, "Sasori maan, just atatch them chakra strings to my body and fight for me, no worries brah i have your little puppets somewhere nearby and you can just summon them anyway =/. I on the other hand will just sleep and make our enemies salty that they've just been defeated by some dude with their eyes closed.
Who would pick Kakuzu when it even says in his description that he regularly kills his partners? And he fought the first Hokage and survived. I really wouldn't wanna tussle with him, I'd severely doubt my chances of getting out alive.
As for Hidan, too creepy, and he'd probably kill me just for giggles.
I'd go Deidara or Sasori, they're both equal for me. Sasori's the least likely to kill you but if he walks around in his Hiruko puppet all day I'd get a little pissed off at him after a while. As for Deidara, he's more likely to flip out and kill you than Hidan or Kakuzu but I still reckon he'd do it. Also, if he loses his temper at an opponent and kills himself I'd die to, he was willing to kill Tobi to beat Sasuke.
So all in all, I'd have to choose Sasori.
Currently Watching: Mekakucity Actors, Broken Blade (2014), No Game No Life
Re: if u where an Akatsuki...........
Anyone but Hidan...Hidan has been the only villain thus far that I just HATE. I think I'd prefer Sasori or Kakuzu over Deidara, though I have nothing against Deidara as a character at all. In fact, personality-wise I'd pick Deidara over the other 3. Based on battle ability, I'd prefer Sasori and Kakuzu. Not saying Deidara is weak either, he's not of course. Hidan is just...I hate him =_=