No for Daddy?!??

My girls have always preferred me over my husband.  L has shown that preference since day 1, and E has shown that preference (not as strongly) since she was quite little.  This bleeds over into a lot of things:  preference for whose hand to hold, who will bathe her, who will put her to bed, who will read a book/play with her, who will hold her, etc.  It wasn't too terrible when it was just L, but now with two girls vying for one spot?  It's awful.  It's awful in the fact that I can't handle both of them at the same time sometimes, and awful because I can just see my husband's hurt and heartbreak when they won't have anything to do with him.  Even if we force one or the other to do something with him (for whatever reason), she will cry, scream, wail, and do everything in her power to try to free herself of Daddy so that she can get to me.  I hate it, and I don't know what to do to make it stop or get better.  Last night, L wouldn't even hug my husband because she wanted me.  I asked her if she was scared?  She said no.  I asked her if she was angry?  No.  Sad?  No.  Why won't you give Daddy a hug then?  I don't know.  So, I ask her repeatedly to go hug him.  NO NO NO NO NO, complete with screaming and tears.  I could just see my husband's hurt written all over him.  Poor guy.  He doesn't deserve that from his own daughter!  E does the same thing, and it's just gut-wrenching for me to watch.

Any suggestions?  I've tried making the girls have one-on-one time with just Daddy around (like when I was working), and that seems to be fine as long as I'm not there.  The minute they know I'm in the house, they want nothing to do with him.  I'm dying to find a way for them to willingly go to him!