current Sakura solos.
Katsyuu can cut off certain parts of it's body before the poison spreads. Sakura's evasive skills are uncanny. Released seal is an added op skill that sasori and his puppets can't handle. no-med diff if he starts in hiruko (or however it's spelled). med-high difficulty otherwise. The scales of Sakura's attacks now are far too great for sasori to dodge or counter in any way.
Shino + Neji can take Sasori themselves. Sasori has no way to see through bug feints. Neji can easily locate the heart, informing Shino, and therefore giving Shino a strategy for his insects to infiltrate. Shino + info = gg for anyone solo. It's already been shown that bugs>puppets. Sasori has no counter for the widespread bug swarm that Shino used on Tobi. So in actuality, Shino solos. His bugs have speed and endurance feats. Iron sand is not difficult to deal with at all. Gawd kishi should have had Shino solo Edo Sasori! At least for the manga panel credibility.
I'm at work so I don't really have the desire/time to explain how anyone else on this team can solo/duo
not to mention Shino's 1-hit ko Summoning technique. that has no indication that it costs a great deal of chakra or time to prep. I'm assuming (and this may be reaching a bit) that his jutsu can be spammed. So if somehow Sasori survives the attack in his first form, Shino has additional chances.
I dare someone to counter me -_- i will most assuredly stalk this thread after i finish my work for today >_>