It would be really hard to get the burst stoppers out of a "fresh" Cho-Z Achilles/Spriggan/Valkyrie with a Hasbro Switchstrike or Turbo ripcord launcher. I'd have to give the strength advantage between the two for the Turbo ripcord launcher. I've been able to get one burst stopper out of my "trained" Cho-Z Achilles with a Turbo launcher somewhat consistently, rarely two, for test purposes.
Hasbro's Sword Launcher and Shark Launcher are their strongest ripcord launchers but I don't trust their durability or their ability to handle beys greater than 50g (All three Cho-Z beys are 52g and higher).
Cho-Z and GT beys are better off being launched with the newer TT L/R Ripcords and string launchers. Currently, the best ripcords in my opinion are from either the Ace Dragon or Venom Diabolos L/R Light Launchers; they will wear out eventually. Currently, the best ripcord launcher in my opinion is the Cho-Z Achilles Long LR Beylauncher.
Simply a person who likes Beyblades