Captain Marvel. I argue that technically Captain Marvel should win vs Superman and also DBZ should also win vs. Superman (due to magic weakness, Ki = to magic IMO). Without Supes aversion to magic, Captain Marvel should win in physical feats except in battle speed and battle experience (please, no wisdom of Solomon thing, knowing and doing are 2 different things). He would lose in energy projection.
Fighting smartly Freeza could win but I think the majority goes to Captain Marvel.