DS is 2.7
He will not let DH do ANYYHING. Getting up - me. Potty - me, dressed/undressed - me, meals - me, play - me, watch TV - me. Getting in/out the car - me. Bath/shower -me. Literally every last thing from getting up to going to bed!!
DH is willing to do everything but it just creates meltdown and wailing of 'nooooo, mummy do it'
I'm out of an evening once a week or so and he will let DH do stuff then without an issue but if we're both around he's insistent on me
If I try saying something like 'daddy's will play while mummy cleans the bathroom' I just get 'daddy clean the bathroom'
It's exhausting to be honest as well as giving DH a very easy life 

I'm fairly strict with him around other behaviours - for example hitting is a zero tolerance and he is made to help out with chores here and there but I don't know how to solve this issue.
The obvious solution is to insist to him that daddy will do x y or z but quite honestly I'm not sure I can face the constant tantrum it would result in if I were to insist daddy did every little thing he wants me to do throughout the day if that makes any sense.
I was riding it out thinking it was just a phase but there's no end in sight as yet!
The only thing I can think is that DH isn't as confident in how to cope with a toddler tantrum or as good as talking to DS and explaining stuff to him so maybe DS feels more secure around me?? For example, DH will moan, not really shout, just moan if DS wets his pants (currently PT) where I'm far more patient and will reassure him that it doesn't matter.
Sorry, I'm rambling but it's hard to paint the full picture.
Thanks