Questions about some classes state in T4

TLDR: Need information about Slayer, WD, Breaker, DB and Bard in T4 and Ark Passive, so I can choose a char to push.

With the new express pass arriving next week, I'm trying to decide which character from my roster to push to T4. Ideally, I'd like to choose one for which I already have a lot of bound T3 materials, so I can do some advanced honing before the T4 push.

This narrows the list down to those characters between 1580-1600 item level:

• Slayer: I've always played Predator. I've heard that it can be a bit of a pain to play in T4 due to identity management issues.
• Wardancer: I only played Eso in endgame, using entropy set and then the 4-spender hallucination build. I've read that it's not very fun and feels clunky with the Ark Passive.
• Breaker: I've played both engravings, but didn't particularly prefer one over the other. It was a mix of fun and frustration.
• Deathblade: I've had this character since Valtan. I played Surge up to Akkan and then benched it. I recently tried Remaining Energy and it felt okay (purely based on feel, not damage output).
• Bard: Not much to say here. I mainly play DPS classes because I find them more satisfying, but I'm open to playing Bard again (I benched her after Hard Mode Brelshaza v1).

I'd like to hear your thoughts on these classes in T4. I'm looking for smooth and satisfying gameplay rather than just big damage numbers, so ideally a balance of both.

My current gold earners are two Strikers (one is my main), a Hunger Reaper, and an Enhanced Weapon Deadeye.