I think my favourite is by Henry Taylor Tools, so actually made in the UK. I also have a very nice one from Ben Orford. Both bought from Bristol Design, who always have a good choice of carving tools new and old. You need to visit the shop in person really but Bristol's not far for a day out.
I've never tried chip carving, so please feel free to dismiss this as the ramblings of the supremely uninformed.
The thing I find with knives in general that makes the most difference is handle comfort. Most have adequate blades (as long as they're the right general shape for the purpose), but a handle that fits your hand nicely does seem to make control and pleasure of using that much better, especially for something you may be using for some hours at a time. Handles do seem to be very 'personal'.
With that in mind, maybe Andy's suggestion of visiting a seller and trying a few might be a very good idea if at all possible.
I have a couple of mora ones and one from robin wood for spoon carving. the mora are ok, nice enough blades, ok handles. I would describe them as the mondeo of knives-perfectly ok, but you could spend more and get something better. not a bad way of spending your money whilst you work out what you prefer.
I haven't used the robin wood one enough to form an opinion yet.
Having done a lot of knife chip carving, you can use any knife the key consideration is the length of projection when holding the knife when carving. It also goes without saying that it has to extremely sharp. The Pfeil chip carving "kerb" something, is quite good. For video on chip carving Murray Taylor is about the best you can get, he from North Wales. His vid will leave Wayne Barton's video standing .