Laughable. Cell would rape the hell out of these guys. You also must take into consideration that when they fought Cell, they had to train in the Hyperbolic Chamber for a while, therefore increasing their power at a rapid speed. Cell is WAY beyond these 3. Hell, the other Androids could eat these guys for breakfast.
Perfect Cell stomps, Frieza and King cold are hardly even ants to him. Frieza and King Cold were toyed around and destroyed by regular ssj trunks, Perfect Cell easily beat ultra SSJ Trunks. Cell takes all 3 without breaking a sweat.
just cells strength would be enough to kill them, then you add all his abilities, i mean he can make cell jrs. (which could probably take on king cold and freeza) he can regenerate from a cell, he can breath in space he can make a spirit bomb, he gets stronger the more you hurt him and he heals from it, there is absolutely no way in H.F.I.L. he can loose here