Player from Live with questions about now

[LoneGunner]

So as the Title says the last time I really played was back during live and honestly it was right after the reworked the City Siege, so I just got some questions since things I see on youtube and such are before their balance changes and such.

What would be a good Solo class to start with? I like doing Warband but my hours soon with be weird so idk if I'll really be able to do much.

I saw people saying not to get the Conq gear at 40 but the Ruin from raids, the only raids I did was the Khorne Temple and Sewers, is that where I get that gear from?

Should I be saving those War Crests or using those for the Weapons as I level up?

I mained a Blackguard, my buddy decided to flip order so I mained a WP healer.

Any Videos or tips would be helpful.

Thanks