Get proper advice. Sure, it carries fees, but they normally come out of the pot of money. Something like 2% with a minimum of £2,000.
They should ask you about financial plans (buy a porsche, box at city, etc) and tell you when or if you'll be skint/comfortable.
Annuity - die and it's gone unless has built-in spouse insurance which means you get less per month.
Drawdown - you can take 25% tax free for porsche and city box, pot is reinvested and should grow, maybe 5% net, fees would apply, maybe 1-2%. If die then spouse gets whatever is left.
But get proper advice. First meeting normally free and should give you basic idea where you stand.