Permute

Permute (NOT a free app) could be part of an alternative to the much missed VisualHub. It has a good selection of presets and you can modify them as well. It's clearly not for professionals who need more fine-grained controls or non-consumer formats but for quick conversion of things to xBox or iPhone and the like it could be handy.

I haven't done extensive testing with it but if you're looking for something to fill in the hole left by VisualHub this could be a good start.