If I can recall correctly, they tasted pretty similar. This was from Kona in 2012 though, so not sure if/how the dish has evolved over the years. Ohana was last year.
Thanks everyone, good to know! 'Ohana wasn't on our list for this trip but I've convinced DH its a must do, mostly for the noodles, and just booked a reservation!
The Kona ones look like an attempt at Singapore Fried Noodles, and that dish has some curry flavor. The Noodles at O'hana are more akin to your local Chinese Restaurant Lo Mein. More soy flavor.