To illustrate, take these 2 methods which have different styles for writing if/else logic, are there any tangible differences/merits to the different styles?

private int ifElseStyle1(int value)
{
    if (value == 1) {
        value += 1;
    } else if (value == 2) {
        value += 2;
    } else if (value == 3) {
        value += 3;
    } else if (value == 4) {
        value += 4;
    } else {
        value += 5;
    }

    return value;
}


private int ifElseStyle2(int value)
{
    if (value == 1) {
        value += 1;
    } else {
        if (value == 2) {
            value += 2;
        } else {
            if (value == 3) {
                value += 3;
            } else {
                if (value == 4) {
                    value += 4;
                } else {
                    value += 5;
                }
            }
        }
    }

    return value;
}

I’m purely interested in the merits of the different if/else syntax presented above i.e. not about whether I can use switch or any other alternative approaches.
Thanks.