I have one of each - a child that has thumbsucked since dot and had no interest in a dummy, and a child who is a dummyholic to the point we're considering holding an intervention for him!

I think I prefer the dummy as well to be honest. DD (the thumb child lol) is now and has always been an excellent sleeper - but her thumbsucking is causing dental issues, I can see her two front teeth pushing out already. She's getting better, she mostly only does it when she's tired or going to sleep now so I hope she'll outgrow it soon.

DS seems to be getting more addicted to his "dohdoh" than ever, don't quite know what to do with him...and yes it definitely contributes to his night waking. Ah the dilemmas.....