Builder comparison in Noida, so confused!

I work in real estate but buying for myself is different, right? Looking at a few different builders in Noida and honestly, I'm stuck. Has anyone had experience with the actual carpet area vs advertised super area games? I know what builders don't tell you, but I'm seeing different things on site. Also, what about on-time delivery? Did they actually deliver when promised or were there delays? I'm trying to avoid hidden charges at possession, like increased PLC. Any insights into which builder has the fewest surprises at handover? Should I even be considering resale value at this stage? Thanks in advance!