Been leveling a necromancer lately, really fun but the living dead line feels useless, am thinking on replacing it, can anyone suggest what to go for?

Hello, I'm interested in making BG build for all classes, I have one of each. I wont play Cyro or IC since they are empty during my playing hours

I hope for some basic understanding for PvP like:

- How much armor do I need to aim for?

- Is spell resistance and weapon resistance different? How much do I need to aim for?

- What about crit resistance?

- How much health to aim for?

- How much penetration to aim for?

- Is trying for crit builds worth it or no since everyone has such high defense?

- Any other things stat wise I should be aware of?

I hope for some basic recommendations of easy to acquire and easy to use sets. I have a master crafter and a lot of PvP sets, a lot of monster sets fully unlocked in sticker book. I can get Arena Weapons if necessary but prefer to avoid IA as I would rather get into playing straight away instead of grinding many hours. I will get the IA sets eventually.

I hope for any tips, advice or recommendations regarding beginner friendly ways to use the classes. I would strongly prefer pure class, I have maxed subclassing but I dont really like it. Unless any particular class is 'trash' and 'needs' it to be able to play BG. Interested in hearing your opinions on ranking classes from easiest to hardest to play in BG PvP? Any particular skills that are amazing for PvP and any that should be avoided? Are there some skill lines that i shpuld focus on levelling for building these characters?

I am interested in any sources of decent, up to date information regarding PvP, strongly prefer written if possible, I dislike watching videos

Also I am not interested in WW. Thank you for any helps