so i just want some opinions and facts on the matter of which is better for breeding purposes, crown tail or half moons, is there a big difference?
CT's are every betta that has web reduction on their fins regardless of their form (long/short finned, number of rays, 180* spread or less, etc).
While HM's are long finned bettas that MUST have a 180* tail spread, otherwise they go into the delta group.
IMO both fin types breed equally easy/difficult BUT making their fins spread 180* (both types) is not that easy. You must select your breeders. So it comes down to your goal - do you just want any long finned betta either with or without web reduction or do you want to maintain a 180* fin spread.
In general CT need more care than HM. They at least need IAL to maintain their fin form - keep their rays nice and straight (actually it's not really the IAL but the water pram that the IAL causes)..... I can't explain in detail because I've never really worked with them nor have I read much about them. All I know is that my water can't keep their fins nice, tidy and straight.
HM's are more tolerant towards different water parameters.
I agree with curly that PK's are in general the easiest to keep, breed, raise, and maintain/care.