I haven't had a sik or akra but I'm partial to a front pipe that comes down behind the rear brake pedal... easier to clean and shields/hides bug splats on that side... but I also hit my head really hard when I was born. My mom was a hippie, umbilical bungie jump method.
i just went with mgs true duals. i've heard nothing but good things about them and they are having a sale right now with pipes,tips,stage 1 and programmer for $1089.