Agree with anumber1. Sony VTC5 is top dog presently with 2600mah and a 30 amp continuous discharge rate.
http://www.e-cigarette-forum.com/forum/batteries-chargers/581174-how-identify-counterfeit-sony-batteries.html

Sony VTC5 IMR/hybrid
For 18490/18500 size, the AW 18490 IMR is easily the top dog with 1100mah and a 16.5 amp continuous (15C rating).
http://www.e-cigarette-forum.com/forum/batteries-chargers/568840-sure-your-aw-batteries-genuine-how-tell.html

AW 18490 IMR
For 18350 size, I'd go again with AW. The AW 18350 IMR 700mah has a 6 amp rating. Efest sells the purple 18350 700mah with an "advertised" 10 amp rating; however Efest has had a history of over-rating their mAh and amp ratings in the past. Efest often confuses the continuous and pulse ratings, which I find to be disreputable.

AW 18350 IMR
Battery Basics for Mods
Be wary of where you purchase your batteries. Fake or counterfeit batteries for the most popular brands are becoming big business. Purchase only from reputable vendors who can verify the source of the batteries directly from the manufacturer. Ie RTD Vapor, Illumination Supply, Orbtronics.
"Battery counterfeiting: This is a growing problem and all APV users need to be aware of it. This is what happens: the counterfeiters buy reject Li-ion batteries in bulk, strip the covers off, and re-cover them with labels that change them to look like popular brands. In this way they can take a cell bought for 10 cents, re-work it, and sell it as for example an AW battery with a retail price of $10. The profits are very high and this practice is growing. It means that you never really know what battery you have unless you buy from somewhere with a verified supply chain. For example, all AW batteries offered for sale on Alibaba are counterfeits, and possibly dangerous." Rolygate, ECF forum administrator
Rechargeable Batteries.