Simple... Chayes NHC, Breath HC and Wush HC
Asked and answered so many times. Sim your toon (sims suck for fire right now though), but as a consensus Breath and Wush are interchangeable depending on if you are lusting on the pull or not. Hydra if yes Wush if no. Personally I just like hydra better and some like Wush. But there have been 285902352 threads on this already... l2search.
Fire = Cha ye + Wushoolays
I'd imagine that both Frost and Arcane are Wushoolays + Breath
Simcraft is your friend, play around with it and you'll find out whats best for you.
Fury read previously what I said. Not only do you give an ad hoc answer and give it as a blanket statement, but you didn't read what I had posted previously. This thread should just be locked since there are plenty of answers to this over and over in this thread and there have been for months.