Really no point in paying for an anti-virus these days unless you are silly enough to go on pr0n sites which are most likely filled with viruses. I would say Nod 32 is the best and it is, but I see no difference at all between Nod 32 and avast. Thats what I chose a free anti-virus over a payed one. Nod 32 does not offer that much more than what avast offers, so it makes more sense to go with the free one.