Well first I'll have to admit I'm no expert. You're the mother of four. But, we are both in a similar boat. Wonderful husbands, and wondering sleeping children.
First thing I think I have to say is I agree you son LOVES his daddy. He also LOVES you. The reason he wants nothing to do with you at bedtime is because you have made him sleep in his own bes consistently, where your husband has not. He's let you be the bad guy. Nothing against your husband of course, but your son is smart, and almost 3, and he wants to be in bed with you guys. He has learned how to do this.
Occasionally his mom and dad try for a couple of weeks to get him into his own bed, but after awhile dad will wear down and give up and presto. Back in the bed. Your hubby gets tired, it's understandable, and it's so easy to just, well, "If you can't beat 'em join 'em."
I am speaking from personal experience. I am however, in this case, the husband in the senario. I love having my lildaughter in with me too. I work swing shift so sometimes that's nice for me 'cause I feel like I still get to spend time with her at night.
We also never ever wanted our children in our bed. It actually happened more out of necessity. My daughter was 2 weeks overdue. by the time she was finally born her placenta was so aged she wasn't really getting adequate nutrition. So, she nursed like crazy , really for her first month. We would lie down in a way we(Anneli and I) could nurse and we would fall asleep all time. When she would wake at night to eat, it was the same thing. That just went on and on. The next thing we knew, we weren't even bothering to put her back into her cradle any more.
Just a thought though. I'm not a fan of the "cry it out." It's hard on the child, siblings, parents, pets, and neighbors. Also, it takes a long time to relax after a hard cry, or fit. the rapid heart beat, red hot cheeks, increased bodt temp, sweaty, breathing hard, they usually get pretty thirsty, and then no body is going to come and comfort him even once he does stop, or encourage him if he does calm himself, which is one of the keys to that method of discipline.
The approach that has worked for us and our daughter is, to break down her crib into a toddler bed. We introduced it to her as her new "big girl bed." We put a new pink blanket and pillow on and everythink. None of that duffy baby stuff anymore. She haden't really ever slept in the crib anyway, so we recomissioned.
Then since she was used to us sleeping with her, we slept one her floor two weekend nights. Then I worked-I work swing so I'm not around for her bed time. So now my husband puts her to bed on his own. Every night they do the same thing.
Milk
Jammies
Wash face/hands
Book
Dvd-maybe (if she dosen't seem "tired)
Then he lays on the floor next to her bed untill she falls asleep. If she crys, or talks, or what ever he deals with it no big thing. If she gets up he just lays her right back down. It usually dosen't take more than a half hour, but sometimes I don't see him until morning, I admit. Generally it seems to work out really well. She sleeps 11-12 hours easily. She has undisturbed sleep. I feel she's a lot more independant now. She has a little extra boost of confidance.
And besides, you can't have one kido kicking you in bed on the outside and one kicking you on the inside!