Guys. Focus please. Speed is equalized, right? Well, Akame can dodge bullets at point blank range and even slice through them. Something Sui-Feng hasn't been shown to do despite her speed being equal to Akame.
@LordAizenSama: You say that Sui-Feng can stand in the sky. So what? Esdeath can do this as well (Or Levitate to be more accurate, although that's Pesudo-Flight just like Sui-Feng's) and Akame had shown to outmatch her while in this state, so Sui-Feng is no exception to this.
@LordAizenSama: Clones? Stop joking dude. With all due respect, Akame has been shown to annihalate an entire army of Dr. Stylish's clowns within a split second when Stylish found Night Raid's base.
@LordAizenSama: Kido? Sui-Feng has only Bakudo #30: Shitotsu Sansen. Akame had countered worse than that. Assuming that the speed is equalized, and the fact that Akame's speed was enough to leave an afterimage to counter Esdeath's Mahapadma in the non-canonical anime,We would conclude that Sui-Feng's Kido would be useless as well.
@LordAizenSama: Marital Artist's skills? Akame is not lower than Sui-Feng. According to the Akame ga Kill's Database, Akame started Assasination at the age of 5, giving her 12 years of fighting experience. While that is lower than Sui-Feng, but if that experience is enough to defeat Esdeath, who can run at Mach 292 slaughtered the majority of the Revolutionay Army and took down about 5-6 Teigu users before engaging against Akame, then that's enough for everyone here to know who would win, right?
Now for the final part, Sui-Feng in her Shikai is at most Town Level, but Akame is City Level without Ennodzuno Mode, Which makes her Mountain Level.
Even if we say that this is Bankai Sui-Feng, It won't make any change considering the fact that Sui-Feng's Bankai leaves her fatigued alongside the massive shockwave followed by it that not even Sui-Feng's Metal Sash was capable of withstanding it.
You could consider Akame as the Yoruichi Shihion of The Akame ga Kill! Universe (If you didn't count the Flash God Super Transformation, of course), and again With Akame's more Haxed weapons (Murasame and Kiriichimonji), this would be superior in front of Kido and Suzumbachi's Shikai.
For all of those reasons, I'm voting for Akame via weapon hax and feats.