Wedbush analyst Michael Pachter expects 3DS to outsell PSP2 because the former "will have greater success in capturing the consumer's imagination".
Speaking about a sales battle between one product that has been announced and one that hasn't, the industry watcher likened the match-up to Kinect and Move.
"I think that the 3DS will outsell the PSP2, because the 3DS is new and different, while the PSP2 is likely going to be a souped up version of the old PSP," Pachter told IncGamers. "Thus, I think that 3DS will have greater success in capturing the consumer's imagination.
"I think this is Kinect vs. Move all over again," he added. "Kinect is outselling Move because Kinect is new and different, while Move is very similar to the Wii."
Nintendo is to reveal European 3DS launch details at an event in Amsterdam this afternoon, while Sony is expected to unveil the long-rumoured PSP2 at a press briefing in Tokyo on January 27.