By my wedding, I was escorted down by my father and father-in-law. Please note that this isn't because of any special minhag that I have (I had none in this area), but rather because by my wedding, my divorced parents would have felt uncomfortable walking down together -- so even though that would have been my preference, I agreed to the other way. In the end, to me, it wasn't terribly important and certainly wasn't worth making anyone (and especially my parents) uncomfortable over.
By my sister's wedding they were apparently okay with it, since they both walked her down the aisle.
As for my kids, I'm going to do whatever makes them happy. If they want me to walk them down with Eeees, I'll happily do it. If they want me to walk them down with their future father-in-law, I'll happily do that too. It's their big day, not mine, and their wishes should be respected.