Who would be more difficult to live with?

I would have to go with Sheldon. 1 Sheldon = 2 Leonard's mom , LoL. And the other responder is right .. when L's mom leaves , then it'll be Sheldon's overbearing and Mr Know it all conquering. I'd love to irritate the socks out of him if I'm one of the Big Bang guys. Like what Penny had done before , lol. Brilliant show.

Hi pinhornudo as a third party we love Sheldon's science way to deal with daily stuff,contrarily he'll gonna piss off everyone around him. addtionally this popular drama seems go around Sheldon more, he got more lines,so he can annnoy them and amuse us more. anyway it's definitely sheldon who's more difficult to deal with.

lol Sheldon hands down, you can deal with Leonards mother but Sheldon would drive you crazy. Mr know it all, socially inept, unfriendly. It'll just be new drama everyday, well it is new drama everyday anyone who's seen The Big Bang Theory. lol You're also forgetting mother left, Sheldon is still here.

I think Sheldon by far, he would be an extremely difficult person to live with. So I think he beats almost anyone! IRL and on the show :)