Noida Extension or Yamuna Expressway: which one now?

Since January I've been trying to decide where to put my next investment. I already have a 2BHK in Sector 75 and a resale plot near Pari Chowk, so I understand the basics. Now I'm torn between Noida Extension and Yamuna Expressway. Noida Extension seems safer, more established, with decent rental yields maybe 3-4%. But Yamuna Expressway, especially after Jewar airport, might give better appreciation, right? Like double in 5 years? I'm thinking of a plot this time. Honestly not sure if the risk is worth it. Sector 22 bhi dekha tha, but rates are too high now. What does everyone think? Noida Extension or Yamuna Expressway for better ROI? Kiska zyada future hai? Batao yaar.