Hello,
Classic is more active during the start of a ladder, which is going to be in May i think. Currently i am not sure what is exactly going on as I am working on a SP char
There are some straight forward cookie cutter builds, which can be found in the guide topic. There are also some cool variations to try - some are also mentioned in the guide, some you might have to fish out yourself :D.
What is a standard Zealot though ? Fanatism and physical damage one?
The current patch is probably the most balanced when it come to PvM meta. If you are looking for some imba fun times i'd recommend checking out some other patches.
I am currently working on a holy shock zealer, which i might combo with holy freeze in the future. This build is fun, how ever immunes and right items are a problem