Something else to consider:-
If you stop work, but don’t claim your pension, you could claim Job Seekers Allowance (circa £70 per week) for up to 6 months, based on your NI contributions (over the last 2 years). As a result of delaying taking your pension, you should get a slightly increased pension payout.
If you ask your company pension service, what increase you would get by taking such action – you could then decide whether such a course of action worthwhile.
Of course you would have to pretend that you were looking for work for 6 months, but once you are in receipt of a pension – you cannot claim JSA.