Two rocks held together by a wad of chewing gum could beat the Hades. Have you ever played Silent Threat?
That said, the only instances I've ever seen where anything larger than a cruiser tries to go head-on with a capital ship were all heavily scripted. There's the Repulse trying to ram the Colossus, but that's dealt with by a beam-fire sequence; the Sath in High Noon, but it isn't actually told to attack because it's main guns are supposed to be disabled before the Colossus could outmanuver it anyway, and the Ravana "Beast" in Clash of the Titans II had a specific code exception ("if mission name = 'Clash of the Titans II' and ship = 'SD Beast' then break AI, to paraphrase). What would be nice would be to have this option available to larger ships. Just a question though, are you able to change the cruiser's orders?