It's been a very long time since I've read Cantor, and many other things have filled the available slots in my brain since then. That being said, if you're talking about dimensional differences of infinity, then I suppose there could indeed be longer infinities. Has one dimension been around longer? I have no idea. But it would make sense that if one dimension has been here longer than another, its infinity would be longer than another's. Much like if I said, let's have a number counting contest, GO! I would win because I started before you.

Hmmm... Anyway, you've sparked an interest and now I want to go pull out and dust off some old books. For that, I thank you.