Rabbits are not considered cuddly!! They only look cuddly. Ask on any rabbit forum and they will tell you that rabbits are not the cuddly type of pet.
Guinea pigs may or may not be cuddly. Depends on the individual.
Check here for more common myths about rabbits:
Guinea pigs must be kept in pairs. The C&C cage shown in photo provides room for them to run laps on the lower level. The "kitchen" being raised up allows them this running space.
Rabbits need more space than piggies. They need several hours outside of their cage (minimum) each day. The area must be bunny-proofed and they must be supervised. This is a considerable time commitment just for the exercise alone.