I have 2 show-type cockers & both are completely different.
Roly is laid-back, loves everyone & everything, & thinks everyone in the park is just there to see him!
He's a bit of a girly-boy, & can take a walk or leave it, & in the park just sniffs & potters about, & nothing can entice him to pick up a ball, let alone chase it!
Barkley, on the other paw, is best described as 'a nutter'! He'll chase a ball all day long, & in the park is always hopeful that it's swift season ... we then just have to take up residence on the nearest bench, & wait for the birdies to get fed-up of tormenting him, & go back to their trees! He tolerates other people & dogs, aslong as they leave him alone & he doesn't particularly like kids (don't know why, but rehomed him when he was around 17 months old). He barks at everything, & chases everything, & wants to be with me all the time (when he's not chasing balls & birdies).
... then there's Daisy the sprocker (springer X cocker) which I'd advise you not to get if you've never had a spaniel before - I got her knowing what she was likely to be like ... she's completely bonkers, & hyper, but best mates with Barkley, so they can chase balls & wrestle together ... she will also wrestle with my daughter's staffie, who after a while, goes to his mum to sit on her knee, as Daisy's way too rough for him!!
Yes they do moult, but, aswell as having the spaniels, I've also got a black lab, who moults more than the other 3 put together!! I'd recommend a cocker to anyone, as they're such lovely little dogs.