You need to first start by telling us what kind of pensions you have!
But even then, why rely on some random on the internet giving you an opinion on something really important to your future - when they don’t have your scheme booklet in front of them?!!
How can you plan your retirement if you don’t know? Please, read your scheme details!
If it’s a DC pension, or an AVC part of a DB pension, they can nominate anyone they want, and that person will get the entire sum. It will also be inheritance tax free if the personal leaving it dies under 75.
If they’ve already converted a DC pension to an annuity and retired, there’ll either be nothing to leave, or a reduced spousal payment (spouse only) according to the terms they signed for that annuity.
If it’s a DB pension, there’ll be a nomination form. It’s not binding - it’s for the trustees to decide. But it’s pretty much considered binding.
With a DB pension, it’s rare that a spouse would get the entire pension benefit. There’s usually a spousal benefit. For example, my husband gets 50% of what I would have got. He gets that at 65 (my scheme retirement age) and he can request it from age 60, subject to an actuarial reduction.
But my husband actually already receives a spousal pension from his late first wife’s NHS pension - and has done since he was 40, when she died.
That’s why nobody here can tell you exactly what you and your husband’s schemes pay out, not least because you’ve not even told us what type of pension they are!
It’s really easy to contact the pension department and ask.