Which one is suitable for me? Blackberry Priv or Apple iPhone 6S?

Currently I'm using Blackberry Z10 (previously Blackberry Curve 9320). I have Apple MacBook Air. Mostly my usage is for office and mail. I'm happy with Z10. Due to incompitable apps in BB OS, I'm thinking to move to Android / Apple platform. Suggest me for suitable smartphone.

Operating System

I am planning to buy a New handsent (cell phone) currently I am not user of any smartphone, just I am using a Featured phone.

I wanted to know which Operating System like (Windows, Apple, Blackberry, Android) is always better to use which does not have much lags.

I am a moderate user if I buy the smartphone, so Kindly let me know which OS is good to buy as I am not pouring money lot much, say about around Rs.10000/- which all the specification, configuration should be good for daily normal usage.

I will use the net rarely say about once in a week. So, considering all these please suggest the better smartphone.

And also need users review which ever you mentioned the Phones?

Thanks in Advance
Ramesh

Want QWERTY supported android smartphone ranging Rs12000-Rs20000

Hello,
I'm at a bit confused state about buying a smartphone supporting QWERTY keypad in Android as the QWERTY market is shrinking.

Following are my specification for it:
1) QWERTY keypad enabled.
2) It should be Dual-Sim, supported.
3) Runs on android( 4.2 or above) platform, please suggest if Blackberry OS can be a worthy replacement( note that I'm a college student not a businessman).
4) Processor above 1.2GHz plus RAM more than 2GB
5) Internal Memory 8GB or above
6) Battery should be more than 2000mAh
7) Screen size near 4 inch.
8) Scratch resistant screen, would be perfect if IPS display

I'm not a gamer, so need not that level of specification, only a normal specification with bit improvement in multimedia section as per the price range.