Answer to part 3 - equities on A♥10♦7♦J♣ board:
34.7% - 5 (AKQJ r) - Nut straight with redraw to nut full house
32.6% - 1 (KQQ8 ds) - Nut straight, no redraws
27.1% - 6 (AJ96 ds) - Nut flush draw, nut full house draw
4.2% - 2 (8775 ss) - One out to quads
1.4% - 3 (KKJT ss) - One out for a 3-way top straight tie
0% - 4 (TT43 ss) - Drawing dead, since the T is in someone's hand and pairing the board will make someone else a better full house or quads
Scores (lower = better):
dj: 1 (#4 has no outs so comes bottom)
Thanks to those who took part and I hope this has helped you think about how much equity you have at any point in an Omaha hand, and how your opponents' likely holdings can influence that equity.
My hand was #5 (AKQJ r), and I was surprised to see I had only 2.8% equity preflop, given all the other players who were already in the pot, and the fact I need high cards to make my hand. If it were suited, that would have added a lot of equity because I can make the unique nuts even if the board is low.
It also shows that in a multiway pot, middle connectors can be very powerful - in fact they were the best hand preflop.
In the actual hand, the river was 6♦, so #6 took the main pot. However the fact that hand #6 had a smaller stack than me meant I got most of my money back in a side-pot.