Strength:
Darkseid is an immensely strong being, able to casually destroy Lantern constructs and easily take on the entire JL, even when holding back (he obviously wasn't seeking to kill them, as we will see from other scans)
Casually fights off the JL, even using Superman's body to as a weapon
http://i.imgur.com/AtdNzZp.jpg
Rips the Hellbat Suit, which is meant to fight Darkseid level foes, apart like tissue paper
http://i.imgur.com/cKCv38G.jpg
http://i.imgur.com/wzmh46Y.jpg
Easily shatters GL's construct and breaks his arm
http://i.imgur.com/mstdcxn.jpg
Takes blows from Flash, Wonder Woman, and the rest of the JL and then casually bats them aside.
http://i.imgur.com/Vp5kQHd.jpg
He can physically grab onto and force open dimensional rifts
http://i.imgur.com/gykeYzc.jpg
Energy Projection
Darkseid has access to the Omega Beams and AoE energy based attacks, in addition to some esoteric energy abilities
Kaiyo and Darkseid both affirm that he can destroy planets
http://i.imgur.com/gykeYzc.jpg
http://i.imgur.com/yamE7ua.png
His Omega Beams can keep up with Flash's speed
http://i.imgur.com/2DetEgG.jpg
The Omega Beams can one-shot Superman
http://i.imgur.com/VkuKm0W.jpg
Has the ability to use an AoE energy attack that can stun the JL
http://i.imgur.com/3rzV5xY.jpg
Other Abilities
Has killed dozens of Supermen throughout the Multiverse
http://i.imgur.com/xbsJAnk.jpg
His mind is apparently connected to his Boom Tube network
http://i.imgur.com/KVTqs2I.jpg
He is resistant to attacks that teleport the target, showing that he can at generally ignore teleportation effects.
http://i.imgur.com/KSqoEQq.jpg
http://i.imgur.com/DnGRomR.jpg
Durability
Survives a dimension collapsing on him
http://i.imgur.com/yM61q6j.jpg
Survives with no ill effects his own Omega Beams
http://i.imgur.com/KJ7o7UP.jpg
http://i.imgur.com/n6WyfN5.jpg
Survives a planet being busted with him at ground zero
http://i.imgur.com/yamE7ua.png
New 52 New Gods confirmed to have avatars/separate consciousnesses again:
Multiversity Guidebook
http://i.imgur.com/yoKvr7m.jpg
Courtesy to external links for providing the above^