Haven’t used any of those! Halifax’s design always felt too busy for my liking! Not keen on the branding either. Barclays was just right for me.
I do love the look of the new TSB cards though! Haven’t opened an account (yet!) though!
I have the standard Revolut card, which I also love! Reminds me of a mixed tango ice blast! 
What does the Plutus one look like?
Hah! I’m totally the opposite! 
It’s not the usual one, but someone posted a picture earlier in this thread so I’ll link that below!