Some powerful Ares combos I recently discovered:
I believe you can't dodge the third attack with triangle with the spear, if it is possible, you can start with the triangle launcher
Ares spear: S,S, hold Triangle + jump, air S, air special T, air S, air special S --- the enemy still lands close to you, so it is possible to start a new combo quickly if it doesn't die!
Ares sword: If you don't want to start with S,S hold Triangle + jump you can parry and then launch the enemy. While in air -> S,S, Special triangle - the enemy will bounce on the ground and you will be able to hit two more times, so hit Square and then Special Square.
Sword of Hades (or blade i dint remember, the first sword unlocked by Hades)
L1+/\, , , L1+, ,, /\, Brutal Kill.
jump, O, hold/\,, , L1+/\, , , L1+, ,, /\, Brutal Kill.
Specials on Cooldown:
, , /\, , , 
Dodge+hold, , , /\, 
I have many more with all allegiances and weapons.
Note that the combos mentioned above are killer combos (no escpae unless relic is used)
Any Sword is good only sword X,T wait until you're on the floor, S, S, Grapple, then wait after the pause after the grapple, continue pressing square until your opponent is dead. My most favorite combo Add me yesnuelram
This does not work. After the grapple, you can evade, at risk of being grappled again, or block. Many people don't do this so it may SEEM like a combo.
But spread this combo around. The more people jumping with tringle, the more people feel the wrath of my Maul after I parry them
Combo for hades sword (lv9) very nice one, but I don't know if it eas already posted.
When enemy bounces on floor for jump slices/parry or whatever you do: S,S, l1+S, S,S, l+T (press triangle while under enemy), on air: S,S, R1
Minotaur Hammer : Jump O, L1+S, S, S, Jump S, R1.
Gladiator Sword : Jump O, L1+S, S, S, L1+T | Jump T, S, S, Jump T, R1, L1+S
Centaur Spear : Jump O, Hold T (Don't jump), L1+S, T, L1+T OR Hold S
Spear of Destiny : Jump L1+S, S, L1+T, R1
Gladiator Hammer : Jump O, L1+S, L1+T, Hold T, S, S, R1
I know a lot of combos. These are just 100%'s with Ares on the top of my head.
Hades Sword (Lvl 9) : Jump T OR L1+T, S, S, L1+S, S, S, Jump T, R1
Ares Blade (Lvl 9) : L1+T, S, S, Jump S, L1+S
A few more...