I like clones. I'm sure people would rather see their favourite character in as a clone rather than not at all.
I think clones get blamed for character cuts - or they get compared to a 'better' character who could be in. As @
Frostwraith
pointed out, it only takes one sixth of the time to implement the clone character... and that was in Melee when there was only 25 characters to balance against. Even so, I'd rather have six clones who play differently to their original counterpart than one character.
As you said, that's just my opinion. I don't think people only choose quality or quantity - I'm a mix of both. Obviously I don't want every character to have a clone, but the amount we have in SSB4 (considering the leak) is not that outrageous.
Dr. Mario is getting a surprisingly large amount of hate. It's a Melee throwback, and until he was revealed, I assumed everyone liked him. He was way better than Mario in Melee. Dark Pit I can understand though. If Dark Pit as a clone gets in over someone like Dixie as a clone, I'll be pretty annoyed. Even having played KI:U, I don't see Pitto's appeal. He was actually pretty annoying.