I think that Ten probably has more of a hubris problem than Six though TBH.

I really haven't seen enough Six to make a valid comparison. But Ten may get away with some of it because he's so pretty and has puppy-dog eyes ;)

I have a special place in my heart for Paradise Towers (it's the only Mel episode I don't want to punt off a cliff)

To be honest, I didn't see the whole story. But I facepalmed (and yelled at the screen) like whoa when she happily dived into a murky swimming pool in a falling-apart hotel. And now I'm inclined to avoid the rest of her episodes entirely :p

Seven doesn't really come into his own until he gets his Ace up his sleeve.

OK, I don't know if you coined that, but it's beautiful :) And my sister raved about Ace, so I'm looking forward to seeing her.