1♥-1♠
??
We have the agreement that 3♣ is a ♣ splinter with 4c♠ and 12-14 or 18-19. And 2♠ is a normal raise (we don't raise often with a 3c♠).
My partner prefers 3♣ to show an unbalanced distribution. 2♠ would show a more balanced hand.
I prefer 2♠ because with the minimal hand the ♣Q singleton is not worth to be mentioned. Partner will also mis-evaluate ♣Kxxx and with ♣xxxx he will expect more pts in the other suits.
....Given the bidding agreements, what bid do you prefer?