What would the fiancees do? I'd expect Akane to dissolve the > engagement,

I don't know, Akane seemed to like lecher type Ranma an awfull lot :)

probably clobbering Ranma a good one in the process. The other three
would IMO compete for his attentions, 

Nope, my guess is they'd be too confused about what's going on at first.

which I think would degenerate
pretty quickly into a brawl. They might also clobber Yuka or any other
unfortunate girl to whom Ranma had been showing attention 

They'd be too busy thrashing each other to notice that his attention is
wandering.

I can see Nabiki trying to sell the info to a classroom of customers
only to have Ranma come on the PA and tell everyone he's enjoying
himself too much to change back. <<Welcome to Hell ladies!>>

--

Sir Phoenix Knight,

Knight of the True Fiancee, Tendo Akane #234

Honoured member of the Ryoko Forever Fan Club (RFFC) #383

Devoted follower of the AFC (Asuka Sohryu Langley Fan Club)
   
                   ICQ # 1111990
  http://www.geocities.com/Area51/2023/index.html