Classic Juggernaut VS. The Flash
Who takes it?
Juggernaut has his shield up. Remember it's magical properties. Stealing the speed or completely stopping the Juggernaut is out of the question. Flash can try, but I don't think that'll stop Juggs entirely. Battle takes place on earth. Anything goes, except time travel and running away from earth. Anything goes. Can the speed force breach Cytorrak's mystical shield? Keep in mind, in the first encounter with Thor, Juggs shrugged of the Mjolnir and a godblast that repelled a weak Galactus.
Winner of this fight is declared by KO or death of their opponent. No ring outs. No teleportation.