1). I have taken Max Term Insurance last week. LIC Tech Term and max were my shortlists and LIC was on higher premium side. So I choose Max.
2). I choose to pay till 60 years because, the premium of around 18K for 2 Cr Sum Assured would be very much affordable 10 years from now adjusting to inflation. So, I preferred to spend a very very affordable premium amount of 18K / year till 60 years rather than paying increased premium for 15 years. Instead the difference in premium, if you invest in a good Mutual fund, you would see it grow.! Still, Its one individual choice and depends on your factors.
3). Don't fall under the Premium return option which is totally useless in my opinion.