I did listen to your tracks. I'm not particularly into dance music but I have some thoughts when listened.
I think Master A lacks low end compared to B & C.
Master B is definitely the most aggressive sounding.
Master C is better frequency wise than A and softer sounding than Master B. It sounds the most balanced of the three.
Based on personal taste I would go for C but based on todays dance-floor trends, you should go with the biggest and loudest sounding beat. After all, you want your beat to blow the club up right? Or isn't that the purpose of club music?
Hope this makes any sense. Just my two cents
PS: I did make this judgements on decent pair of headphones. Didn't had a control room or any good listening environment around right now.