i wouldn't say hes better for sure on gogeta. if you require a slot1 tank for the early turns, then i would opt for the vegito team. the gogeta team would excel in dungeons where you can let them stack their attacks/defense.
for me personally I use the vegito with
vegito/broly/beast gohan/gogeta/LR gotenks/ AGL SJ4 Goku
since your don't have LR gotenks or AGL SJ4 Goku, you can sort of put whatever you want. those slots are mainly going to be floaters, I also don't have the LR gohan, so i don't have much experience with taht
the gogeta i would say its pretty bis for what you have in your box
you could run broly over MUI goku because broly is a tank, whereas MUI is a dodger, so its more of preference of having a for sure tank or a chance at living through dodge
What you can also look into is leading your gogeta team but pairing with a vegito. It's not BIS statwise, but i would definitely say 2 vegito > 2 gogeta.