All right, here's the paytable I used:
ElseIf game = "5aces" Then
paytable = Array(1, 1, 3, 5, 6, 9, 25, 40, 80, 100, 800, 1200)
paynames = Array("hi pair", "2 pair", "3
kind", "strait", "flush", "full hs" _
, "4 kind", "4 kind", "4 kind", "str fl", "roy fl", "5 aces")
And here's the strategy. Note, unlike TomSki/etc., this only shows
the odds for the exact cards shown, both kept and discarded. Their
strategy programs typically give you the lowest value for the keepers
described, which is a better way to do things. My program is not that
sophisticated, and so that's why I list the assumed discards you
have to figure for yourself if your hand is better or worse than
that. Usually I try to pick non-penalty discards, so it gives the
best possible result. When I look at penalties, the description says
something like "A pK", which means holding an ace while discarding a
king. But sometimes even the other hands will have minor penalties
involved. Look at the discards. Also, I don't custom-design the
choices for every game, so not all of these may be relevant. One more
thing, I may list hands that should not be played under any
circumstances you can pick these out by finding the same
combination of cards with different keepers and a higher value
elsewhere on the list.
Again, I don't guarantee the accuracy of this but, hey, it's free.
Buy a real strategy card from one of the vendors if you want
perfection (or at least somebody to blame). 
As was speculated, these figures show it's best to bust a full house
to draw to 3 aces. However, 2 pair is slightly better than keeping
just the aces, because a full house is worth 9 on this paytable. It
would take a drop to 7 on the FH to change that. Also note that you
should not always throw away other face cards to hold just the ace
that becomes a complicated decision related to penalty cards if you
want to split hairs, but it appears the general rule to follow is to
hold faces like you would in JOB.
Note also that the 5 paid for straights (versus 4 in JOB) and 100 for
SFs (versus 50) changes lots of things, like much more frequent
inside straight and 3SF holds.
hand keep---discard value
4royal AcKcQcJc---6d 18.617
AAA AcAdAh---6s8d 6.643
4sfo 2c3c4c5c---8s 5.787
fh/3-2s JcJdJh---6c6d 4.308
3k 8c8d8h---2h6d 4.302
4sfi 1hi Ac3c4c5c---Td 3.532
4sfi/2a Ac3c4c5c---Ad 3.511
4sfi 2c3c4c6c---8s 3.468
2pr 5h5sJdJh---6d 1.681
3roy lo TcJcQc---2h6d 1.638
3roy mid QcKcJc---2h6d 1.582
AA -2p AcAd---8d8h6d 1.531
AA AcAd---8dTh6d 1.529
3roy hi QcKcAc---2h6d 1.426
hi pair JcJd---5s2h6d 1.377
3roy p1 TcQcAc---Kh6d 1.304
3roy plo TcQcAc---ThJd 1.299
4fl, 2hi TcJcQc5c---6d 1.277
3roy p2 TcQcAc---KhQd 1.263
4fl, 2hi p1 TcJcQc5c---Jd 1.255
4fl, 1hi TcJc4c8c---6d 1.213
4fl, 0hi 2c4c5c8c---6d 1.149
o-str, 3hi TcJcQdKs---6d 1.043
o-str, 2hi 9cTdJcQs---6d 0.979
o-str, 1hi 9cTdJc8s---6d 0.915
3sf-1 JcTc9c---Ts2d 0.883
o-str 4d5c6h7c---6d 0.851
3sf-1 JcQc9c---Ts2d 0.797
3sf+0 5c6c7c---Ts6d 0.780
3sf+0 p1 5c6c7c---Ts6d 0.780
3sf+0 JcTc8c---Ts6d 0.726
i-str, 4hi AcJdQhKs---6d 0.681
lo pair 8c8s---5s2h6d 0.664
3sf+1 5c6c8c---Ts6d 0.623
i-str, 3hi AcJdQhTs---6d 0.617
JQ: JcQc---5h3s6d 0.599
3sf+1 Ac2c3c---Ts6d 0.578
JK: JcKc---5h3s6d 0.573
3sf+1 7c8cJc---Ts6d 0.560
i-str, 2hi Ks9dQhTs---6d 0.553
JA: JcAc---5h3s6d 0.551
KA: KcAc---5h3s6d 0.551
JK: p1 JdKd---4cQh6d 0.540
JA: p1 JcAc---Kh3s6d 0.540
JQK JcQdKh---3s6d 0.520
J0: JcTc---5h3s6d 0.496
i-str, 1hi 8s9dQhTs---2d 0.489
JQ JcQh---5h3s6d 0.478
Q0: QcTc---5h3s6d 0.471
3sf+2 5c7c9c---Ts6d 0.460
JK JcKh---5h3s6d 0.458
J Jc---2h5h3s6d 0.447
JK pA JcKd---Ah3s6d 0.447
K0: KcTc---5h3s6d 0.446
JA JcAh---5h3s6d 0.442
KA KcAh---5h3s6d 0.442
A Ac---2h5h3s6d 0.441
Q Qc---2h5h3s6d 0.439
J pA Jc---Ah5h3s6d 0.433
K Kc---2h5h3s6d 0.432
A pT Ac---Tc5h3s6d 0.430
A pK Ac---Kh5h3s6d 0.429
i-str, 0hi 8s9d6hTs---2d 0.426
AT: AcTc---5h3s6d 0.424
A pJ Ah---Jc5h3s6d 0.423
A pJK Ah---JcKd3s6d 0.417
A p2 Ac---JhQh3s6d 0.417
garbage ---2h4d6c8sTh 0.318