My pony likes the Micklem bridle a lot! I, however, am not a fan of the leather. Should I go with Micklem Competition Bridle, or PS of Sweden Pioneer?

PS definitely

PS of Sweden Pioneer

I have the Micklem competition bridle for shows and the normal one for riding at home for one of my horses. They are very ugly but the horse has never relaxed as much as with this bridle, so I'll happily use it with her 😊

Ps!!

I couldn’t agree more, your horses comfort is your first priority

if you're horse likes it, that's the most important factor!