Although I think Lois and Clark are the perfect couple, I would read stories where they are not together and paired with someone else as long as there is a good explanation for that and as long as I can like the "new" person.
For example I loved Jon Wolffs "Lonely is the man". Elizabeth was such a vibrant and lively woman, I instantly liked her and was delighted for her to be together with Clark. Of course this is set in the future, where Lois is dead. But Elisabeth is not a reincarnation of Lois although she has similar character traits.
Ines
