Chun-Li
Chun-Li's main strength is in her speed. She is one of the fastest characters in the game, but has less combos than most of the other characters since she can combo most of her special attacks or supers into combos. Her "Air Raging Demon", known as the Shichisei Senkuu Kyaku, is one of the best supers in the game doing half of the opponent's life worth of damage and it being so easy to pull off in an air combo.
Special Attacks
Mini-Kikosho - F+FP
Neck Braker - DF+FK
Ko-ken - QCF+P
Tenshou Kyaku - DPM+K
Lightning Kick - K rapidly
Axe Kick - HCB+K
Super Attacks
Kikosho - QCF+2P
Senretsu Kyaku - QCF+2K
Hazan Tenshou Kyaku - DPM+2K
Shichisei Senkuu Kyaku - (in air)QCF+2K
Combos
D+WK, D+MK, D+FK, QCF+2K
In this combo, crouching kick them 3 times and then after you sweep them, cancel the sweep into a Senretsu Kyaku. The Senretsu Kyaku will pick them up off the ground and will hit them for the full super. From here, you can cancel out the supers if the option is available to you.
D+WK, FK, DPM+2K, D+WK, FK, DPM+2K, D+WK, FK, U+WP, WK, QCF+2K
This combo is an instant death type. This combo takes 3 supers to do, but will kill even high defense characters with ease. It starts off with a launch into a Hazan Tenshou Kyaku. Once both of you land from it, (Chun-Li will land first giving you time for this), then use a crouching weak kick to pick them up off the ground again, re-launch them and hit them with another Hazan Tenshou Kyaku. After you land again, you can pick them up off the ground again with another crouching weak kick then re-launch them a third time. This time, you hit up to go into an air combo, use a weak punch, then a weak kick, then link the Shichisei Senkuu Kyaku into the air combo to finish them off.
D+WK, FK, U+WP, WK, MP, MK, FK rapidly
This combo works great anywhere, but it does massive damage when the opponent is trapped in the corner. You launch them and do your basic 4 hit air combo. When you get to the FK, it hits them twice. By the time the 2nd hit comes around on them, it will cancel immediately into the lightning kick. If you keep it going, you should be able to get around 7-10 hits before they are able to block, or before you are pushed back far enough so that you can't hit them anymore. If you do get to about 10 hits though, and your aren't far enough back yet, and they don't block, it will stop the combo meter and your hits will do more damage since it is a new combo. If they do block, you can hold it even longer than if it was hitting them due to less push back and put in some serious chip damage. When you both drop down from this combo, and if they were lying down after the combo, start another Lightning Kick either in the air or on the ground. If they don't block it, they are stupid and they will pay for being one. If they block it, they will still take some chip damage.