I have it the other way round, so am semi-lurking for tips for dp, he is fine when I am not around (ds2, 23 months), but as soon as he so much sniffs me he is "mammy,mammy,mammy"
I will give the other side, it is a complete pita, he seems obsessed with me, I cannot move without him following/being on me, trying to climb my legs. I can't have a lie in because he comes and climbs on me at every opportunity, or wee in peace. My house is a tip because I can't properly sort it out unless dp takes them all out at once.
I don't give in when dp is doing things for him, or putting him to bed (and he is screaming for me). It's actually lovely in a way but mostly really really tiresome.
All 3 of my children are like this, totally focussed on me, they love daddy, but it's all about me usually.
Are you very physically affectionate? kissing and tickling and chasing and chucking them up in the air and eating their little bellies? Because that is the only thing I can think of as the difference between dp and I.
He isn't very physical with them at all, whereas I am, so I do actually think that is the key (for us anyway).