Not even a debate.
Even with the sannin in their prime EMS Sasuke and KM Naruto combined is way way way OP.
Sakura can just sit back and enjoy some poki while Sasuke and Naruto literally troll the sannin. Or, she can yell ''SHANNARO!'' and create giant fissures in the ground when she deems acceptable. Just... Don't let her in the actual fight, please.