I feel like current responses cover the whole range of reasonable splits, so I'll say what I did.
First thing I noticed was



, and I wanted to set up the potential royal in SHE because who doesn't love smashing a royal, amirite? But the result is just an okay holding in Omaha,




, and even the SHE side is going to mostly hit marginal stuff, when it doesn't royal up.
Next, I considered taking the
nits who only want half the pot
approach, i.e.,
(My vertical lines added for clarity.)
Ultimately I went with the



split., but I'm looking at the



split now and wondering if it was actually the better between the two, or even if they're equal. It's really close. The way the cards interact, both the

and

are valuable on either side in ways that seem to balance.
My thinking is that the double suited aces split in Omaha sets it up to be a nut-making powerhouse in every possible way, and that's the side I usually want my strength because it's more secure. What makes the decision easier for me is that the SHE hand also ends up with hidden boat potential and meshes well with the Omaha hand. Half the time I flop a set, it will give me a third club in Omaha, and if I spike the

or

, it fills a slot toward Broadway in Omaha. Add the aces, and I have a long list of ways to make nutted hands in Omaha that also have a fair chance at SHE.
As I said above, I don't hate the split that puts
in SHE either. It didn't occur to me at the time because I lean way Omaha in this game, but the AAT split gives you a much better stake in SHE and a combo hand in Omaha with some nut potential. I still prefer the way I did it, but this one is in the realm of acceptable IMO.
but in a bomb format when that’s hairy
The bomb pot structure is always an interesting factor. You don't have to weather a round of preflop betting to see whether the hand is going to play well with the board, and it makes decisions like this a little different. It's actually awesome to get to see a flop with everything by default. Highly recommend.