Oh, come on, you guys are missing the obvious one:
Clawn
Clem and Dawn obviously like each other and the image of them holed up in Spike's bunker for her protection with them watching TV and eating junk food seems quintessentially... American. Of course it's a guilty pleasure because it would violate statute and be an interspecies match and of course, Dawn could never own a cat.
Fowen
Think of Owen from Never Kill a Boy on the First Date and Faith. He wanted to walk on the wild side? Faith invented the wild side. Fasten your seat belt, Owen.
Now for some crossover permutations and combinations:
Lilander
Xander is now a respected construction manager with adult responsibilities and now he needs an adult love interest, something he never had in BtVS, and who would be better adult entertainment than Lilah?
Ninoz
Nina and Oz with a monthly cage match. Just a question - would they end up having puppies or children?
Evethan
Ethan Rayne and Eve seem to be doomed to have things go wrong, but now they can have it all go wrong together.
Some of these are very nice.
🙂
Clawn- surprisingly sweet, And I'm positive that Clem would wait until Dawn was...uh, appropriate. To be honest, I have to envision these two as just friends or my eyes will start to bleed.
😛
Fowen- Ha, Owen wouldn't last a week. He's sweet an all but...aw, well maybe his sweetness would rub off on Faith. He seemed pretty genuine to me.
Lilander- Xander does have a thing for older women. Either Lilah would have a boy-toy, or Xander's pure heart would turn her away from evil. I know which one I'd prefer.
Ninoz-
😀
Evethan- Oh, he'd wrap her round his little finger...
Other couples who I think have onscreen chemistry, now that I think about it:
-Giles and Ethan: Ah, in their wild youth perhaps. Definity got that vibe in 'A New Man' when their chatting over a pint.
-Faith and Lilah- How exactly does Lilah pick Faith up from the club without saying anything? (In 'Five By Five') In the script it does mention for Eliza to tone down any, uh, subtext- it fails. ('We could go somewhere and talk, but I gotta tell you I'm not much of a talker, I'm more of a doer.') Be still my heart, Lilah has her very own W&H assassin, Faith could be a 'kept woman'.
😉