Tom Bergeron from DWTS would be excellent but I doubt he'd do it and he wouldn't have a clue who most of the celebrities were.
I'm undecided about Anton - I like him but he can be a bit "me, me, me" (such as when he's constantly interrupting Tess giving out the phone number) so I wonder if we'd just be replacing one huge ego with another?
I'd also be quite happy with Graham Norton or Paul O'Grady.
I don't see why Tess and Claudia shouldn't do it though, if they both want to. By and large, they've had a very favourable response on the occasions they've covered for Bruce. We don't necessarily need a male/female combo when two women have proved they can do it perfectly well.
A previous post mentioned that Tess might struggle to fill in the later weeks when there are less contestants. On the it takes two thread, it was suggested that for later shows, when judges can be (and should be) really picky and scrutinise everything, a fifth judge might be a good idea. Karen Hardy was one of the names suggested. I think that would be a great idea as there would be no need to fill with inane jokes and cringingly bad VT's - we could hear more judges comments (which would hopefully be constructive!)