Should also say that 2 nights this week he has gone to bed without his last feed because he was just so upset and crashed. Tonight he's taken most of it but screamed twice during it so had to take a break to get him to calm down.
DD was similar - I never worked out whether she just loved her bath or whether she knew it was then time for feed and bed and was just resisting it (depsite being tired and going down to sleep ok)
Distraction worked sometimes - letting her take one of her bath toys whilst she was being dried, lots of peek a boo with the towels, singing twinkle twinkle (and others). Some nights nothing worked though
DD used to do this - she just loved the bath. Once she was old enough, we'd play peekaboo with the towel or sing favourite songs to ease her into pjs. DS also screams like a loon when he's tired and has done forever (loves his bath too - screams if he sees his sister is having one and realises he's not )
My DD was the same. I think they like the feeling in the water then they come out in the cold to be rubbed/patted with a towel and dressed and they just dont like it. Agree with slurzoom re feeding, bit of distraction and also DD was hungry after her bath.