Zardnaar
Legend
That should've been the ST.
I found him very well in Rebels, but I'm ridiculously easy to please.
I liked him in Rebels.
I'm sure he do fine in Ahsoka (here's hoping) but the Imperial remnant seems weaker than Legends Imperial Remnant and First Order.
And he's not bwa ha ha evil like Palpatine (fine with him being evil but sympathetic).