Jaypee or ATS: Which Noida builder is better?

I'm looking to invest in Noida. What do you think about Jaypee and ATS? Which one is better in terms of project delivery? Has anyone experienced delays with either of them? Also, kya aap logon ko pata hai about their construction quality? Which one provides better value for money considering the current prices? Mujhe advice chahiye on which builder has better resale value. Any suggestions?