Depends. If you don't care about hp because you can easily avoid enemies attack and speedily destroy floor, dont click hp. Mana use if you don't use energy mythic or so. Power is must have.
I would say that depending on your situation, 66 hp, 66 mp and rest power.
If you have easy mana from energy mythic or something and destroy floors easily while dodging most thing, no hp point, no mana points and 299 power but thats best for high dps build.
Most builds with the objective to go for high floor use 299 power or 2/3 points go to power and rest goes to mana.
It is all up to you though and the purpose of the build.