After doing a bit of research, here's all the known bounties of wanted criminals, the ones revealed so far that is.
Remember, Bounty doesn't reflect Power. It's what the Marines choose and believe is suitable.
Eneru - 500,000,000 (If he had a bounty)
Donquixote Doflamingo – 340,000,000 (Shichibukai)
Gecko Moria – 320,000,000 (Shichibukai)
Eustass “Captain” Kid – 315,000,000
Monkey D. Luffy – 300,000,000
Bartholomew Kuma – 296,000,000 (Shichibukai)
Basil Hawkins – 249,000,000
X Drake – 222,000,000
Trafalger Law – 200,000,000
Scratchmen Apoo – 198,000,000
Crocodile - 162,000,000 (If he wasn't a Shichibukai during Alabasta)
Killer – 162,000,000
Jewelry Bonney – 140,000,000
Capone “Gang” Bege – 138,000,000
Roronoa Zoro – 120,000,000
Urouge – 108,000,000
Broggy – 100,000,000
Dorry – 100,000,000
Monkey D. Luffy - 100,000,000 (Former Bounty)
Rockstar (of Shanks’ Crew) – 94,000,000
Crocodile – 81,000,000 (Former Shichibukai)
Nico Robin – 80,000,000
Sanji – 77,000,000
Devil Diaz - 60,000,000
Roronoa Zoro - 60,000,000 (Former Bounty)
Bellamy – 55,000,000
Franky – 44,000,000
Roshio – 42,000,000
Sarquiss – 38,000,000
Mikazuki – 36,000,000
Shojo – 36,000,000
Brook – 33,000,000
Bon Clay – 32,000,000
Monkey D. Luffy - 30,000,000 (Former Bounty)
Sogeking – 30,000,000
Foxy – 24,000,000
Masira – 23,000,000
Arlong – 20,000,000
Don Krieg – 17,000,000
Lacueva - 17,000,000
Kuro – 16,000,000
Nami – 16,000,000
Buggy the Clown – 15,000,000
Jango – 9,000,000
Higuma – 8,000,000
Alvida – 5,000,000
Mikio - 1,000,000 (Only seen by wanted posters)
Chopper – 50
Marshal D. Teach - 0 (Including because he's a Shichibukai)
If I'm forgetting anyone, remind me.