OP
I think there is a deeper question beyond these two men, you are not sure what sort of man to marry and whether chemistry or logic to follow. Your actual question I think maybe: "Mumsnetter: shall I choose a charming or a boring man for a husband?"
You find yourself attracted to outgoing, good looking, life of the party type of men but your head (and your parents) tells you that is not a safe option to take. In this specific choice, I don't think no. 2 is a safe option (a 43 y old high earner who still lives with his parents? I know it may be a culture thing but still...). More importantly you can't even have a decent conversation with him! As for no. 1, I think you don't have enough information yet to decide and the chemistry & spark flying around make it even more difficult for you to see the real him.
Interestingly though, you mentioned you had similar chemistry with no. 2 too at the start but it has now died down? so do you think that might happens also with no. 1 sooner or later?
I think you will need to work out first in your head, what sort of man you want, then meet and date, and study different type of personalities so to allow you make a better and well informed decision.
It is not given that the partying type will not be supportive/help with housework. The boring one may also choose to glue himself to his phone/laptop every evening and ignore you and the babies. It may be worth to take a closer look of the real them, beyond the surface and ignore those whistles & bells.