Tom's seems to have a genuinely great relationship with Peggy - in the past she's bailed him out financially but not in a blank-cheque signing sort of way - so part of it is that he still treats her as a person whose opinion he values in all sorts of ways. Its great to have a (very) old character making pertinent comments about running a business and being respected!
Tom does seem to have grown up a lot (and got nicer too) lately - Kirsty's good influence, but then anyone will look good next to Hellin.
I don't think NewTony sounds anything like Rob. Agree that Robert has sounded different recently though.
I bet Neil will come up with something to surprise Susan - but he won't torment her deliberately with those awful 'misunderstandings' you suggest - he's far too decent a chap for that.
I think our anticipation of Darrell's demise was mistaken - with Eddie, Robert and Neil on-side he's got to get sorted!