The catfight in "Railroaded!" was the Fight of the Decade because:
1> Jane Randolph vs Sheila Ryan, each at the peak of their careers. Sheila had another movie catfight just one year later.
2> Blonde vs brunette, each in perfect 1940s hair.
3> Perfect size/build matchup.
4> Good girl (Ryan) vs bad girl (Randolph).
5> Good girl confronts bad girl at the bad girl's residence.
6> Both are dressed in expensive clothes; the blonde in a frilly dress that seems about to slide off at any time.
7> Good girl is standing up for her brother.
8> The trashtalk and opening slaps seem real.
9> Fight alternates, convincingly, from furniture to floor.
10> Outcome is in doubt until the very end.