Gayatri Vatika or Buildcon Maghad Mansion - which is better?

Honestly, I'm confused between Gayatri Vatika and Buildcon Maghad Mansion in Noida. Gayatri Vatika is ready to move, which is a big plus for me, abhi rent de raha hu. But is it worth the price now that it's completed? I've heard completed projects mein maintenance charges zyada hote hai. Buildcon Maghad Mansion ka toh pata nahi, kab tak banega. My parents keep saying ready-to-move is safer, but I'm worried about resale value. Which one would give better ROI in the long run, like 5 years down the line? And what about carpet area efficiency, kisi ko idea hai? Is there a big difference? Not sure if I should gamble on under-construction or not. Any advice from people who've invested in either?